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Found 511 results

  1. This came from a gravel bed in Travis county with a large bluish shale formation nearby. Any info on the material of the rock would be appreciated as well. Thanks!
  2. I found a site where everything is a fossil. Specifically, I could gather 1,000 heterasters in an hour, and there's shelves of ammonites. (See pictures below.) I have two questions: (1) Is a site with a crazy high concentration of heteraster (and associated species) and ammonite fossils out of the ordinary, or are there lots? (Know what I'm saying?) (2) When you find a great site, what do you do?
  3. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since May 22, 2017. Phylum Mollusca Class Cephalopoda - Ammonites, Nautiloids and Their Allies. Jurassic Africa/Middle East Bahrouni, N., et al. (2016). Discovery of Jurassic ammonite-bearing series in Jebel Bou Hedma (South-Central Tunisian Atlas): Implications for stratigraphic correlations and paleogeographic reconstruction. Journal of African Earth Sciences, 113. Howarth, M.K. (1992). Tithonian and Berriasian Ammonites from the Chia Gara Formation in Northern Iraq. Palaeontology, Vol.35, Part 3. Majidifard, M.R. (2003). Biostratigraphy, Lithostratigraphy, ammonite taxonomy and microfacies analysis of the Middle and Upper Jurassic of northeastern Iran. Ph.D. Dissertation - Der Bayrischen Julius-Maximilians-Universitat Wurzburg. Sayed-Emami, K., et al. (2008). Lower and Middle Jurassic ammonoids of the Shemshak Group in Alborz, Iran and their palaeobiogeographical and biostratigraphical importance. Acta Palaeontologica Polonica, 53(2). Wilmsen, M., et al. (2002). Early Jurassic (Sinemurian to Toarcian) ammonites from the central High Atlas (Morocco) between Er-Rachidia and Rich. Revue Paleobiol., Geneve, 21(1). Antarctica Challinor, A.B. and D.C.H. Hikuroa (2007). New Middle and Upper Jurassic Belemnite Assemblages from West Antarctica (Latady Group, Ellsworth Land): Taxonomy and Paleobiogeoraphy. Palaeontologia Electronica, Vol.10, Issue 1. Doyle, P. (1991). Teuthid Cephalopods from the Upper Jurassic of Antarctica. Palaeontology, Vol.34, Part 1. Mutterlose, J. (1986). Upper Jurassic Belemnites from the Orville Coast, Western Antarctica, and their Palaeobiogeographical Significance. Antarct.Surv.Bull., Number 70. Asia/Indonesia/Pacific Islands Alberdi, M., D.K. Pandy and F.T. Fursich (2011). Ammonites of the genus Peltoceratoides Spath, 1924 from the Oxfordian of Kachchh, western India. N.Jb.Geol.Palaont.Abh., published on-line. Challinor, A.B. (1989). The Succession of Belemnopsis in the Late Jurassic of Eastern Indonesia. Palaeontology, Vol.32, Part 3. Iba, Y., S.-i. Sano and J. Mutterlose (2014). The Early Evolutionary History of Belemnites: New Data from Japan. PLoS ONE, 9(5). Iba, Y., et al. (2014). Early Jurassic belemnites from the Gondwana margin of the Southern Hemisphere - Sinemurian record from South Tibet. Gondwana Research, xxx. (Article in press) Krishna, J., et al. (1996). Middle Oxfordian Ammonites (Perisphinctinae) from Kachchh (India): Biostratigraphic and Palaeobiological Implications. Revista Espanola de Paleontologia. Special Edition. Matsukawa, M., et al. (2008). A gigantic ammonite from the Upper Jurassic Arimine Formation of the Tetori Group, Japan. Bulletin of the Tateyama Caldera Sabo Museum, Vol.9. Mitta, V.V. and N.V. Besnosov (2007). Jurassic System Cephalopods. In: Palaeontological Atlas of Phanerozoic Faunas and Floras of Uzbekistan. Vol.II. Kim, K.I., et al. (eds.), Republic of Uzbekstan State Committee on Geology and Mineral Resources. Sato, T. and T. Yamada (2014). A new Oxfordian (Late Jurassic) Ammonite Assemblage from the Arimine Area, southeastern Toyama Prefecture, north Central Japan. Bull.Natl.Mus.Nat.Sci. Series C, 40. Sato, T. and T. Yamada (2005). Early Tithonian (Late Jurassic) Ammonite Parapallasiceras newly discovered from the Itoshiro Subgroup (Tetori Group) in the Hida Belt, northern Central Japan. Proc. Japan Acad., Series B, Vol.81, Number 7. Sato, T., et al. (2008). Newly collected Late Jurassic ammonites from Kurisaka, Tokushima Prefecture, Japan. Bull. Toushima Pref.Mus., Number 18. Schairer, G. and A. Zeiss (1992). First record of Callovian ammonites from West Kalimantan (Middle Jurassic, Kalimantan Barat, Borneo, Indonesia). BMR Journal of Australian Geology & Geophysics, 13. Shome, S. and S. Bardhan (2009). The Genus Umiaites Spath, 1931 (Ammonoidea) from the Tithonian (Late Jurassic) of Kutch, Western India. Palaeontologia Electronica, Vol.12, Issue 1. Stevens, G.R. (1965). A New Belemnite from the Upper Jurassic of Indonesia. Palaeontology, Vol.7, Part 4. Westermann, G.E.G. and W. Yi-Gang (1988). Middle Jurassic Ammonites of Tibet and the Age of the Lower Spiti Shales. Palaeontology, Vol.31, Part 2. Yin, J. (2016). Bathonian-Callovian (Middle Jurassic) ammonites from northwestern Qiangtang Block, Tibet, and the revised age of the Suowa Formation. Proceedings of the Geologists' Association, xxx. (Article in Press) Austalia/New Zealand **No Information Available** Europe (incuding Greenland and Siberia) Arkell, W.J. and J.H. Callomon (1963). Lower Kimeridgian Ammonites from the Drift of Lincolnshire. Palaeontology, Vol.6, part 2. Bardin, J., I. Rouget and F. Cecca (2013). Late Pliensbachian (Early Jurassic) ammonites from Lac de Charmes (Haute-Marne, France): Systematic, biostratigraphy and palaeobiogeography. Geodiversitas, 35(2). Callomon, J.H. (1994). Jurassic ammonite biochronology of Greenland and the Arctic. Bulletin of the Geological Society of Denmark, Vol.41. Callomon, J.H. and J.K. Wright (1989). Cardioceratid and Kosmoceratid Ammonites from the Callovian of Yorkshire. Palaeontology, Vol.32. Part 4. Dera, G., A. Toumoulin and K. de Baets (2016). Diversity and morphological evolution of Jurassic belemnites from South Germany. Palaeogeography, Palaeoclimatology, Palaeoecology, 457. Dietze, V. and R.B. Chandler (2008). Parsemileites n.gen., a new genus of the ammonite family Otoitidae Mascke from the Lower Bajocian (Middle Jurassic) of Southern England with new information on the Otoitidae from Southern England. Palaeodiversity, 1. Dietze, V., C. Mangold and R.B. Chandler (2002). Two new species of Berbericeras Roman, 1933 (Morphoceratidae, Ammonitina) from the Zigzag Bed (Lower Bathonian, Zigzag Zone) of Waddon Hill (Broadwindsor, Dorset, Southern England). Stuttgarter Beitr.Naturk., Ser.B, Number 324. Dietze, V., et al. (2014). Aalenian (Middle Jurassic) ammonites and biostratigraphy of the Geisingen clay pit (SW Germany). Palaeodiversity, 7. Dietze, V., et al. (2005). The ammonite fauna and biostratigraphy of the Lower Bajocian (Ovale and Laeviuscula zones) of E Swabia (S Germany). Stuttgarter Beitr.Naturk., Ser.B, Number 353. Dietze, V., et al. (2001). New Stephanoceratids (Ammonitina) from the Lower Bajocian of Bruton (Somerset, S England) and Achdorf (Wutach area, SW Germany). Stuttgarter Beitr.Naturk., Ser.B, Number 312. Doguzhaeva, L.A. (2000). A rare coleoid mollusc from the Upper Jurassic of Central Russia. Acta Palaeontologica Polonica, 45,4. Dommergues, J.-L., C. Meister and R.B. Rocha (2010). The Sinemurian ammonites of the Lusitania Basin (Portugal): an example of complex endemic evolution. Palaeodiversity, 3. Donovan, D.T. (1998). A New Ammonite Genus from the Lower Jurassic (Upper Sinemurian) of Dorset, England. Palaeontology, Vol.41, Part 5. Donovan, D.T. and F. Surlyk (2003). Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark. Geological Survey of Denmark and Greenland, Bulletin 1. Donovan, D.T., L.A. Doguzhaeva and H. Mutvei (2003). Two Pairs of Fins in the Jurassic Coleoid Trachyteuthis from Southern Germany. Berliner Paläobiol.Abh., 03. In: Coleoid cephalopods through time. Warnke, K., H. Keupp and S.v. Boletzky (eds.) Doyle, P. (1990). Teuthid Cephalopods from the Lower Jurassic of Yorkshire. Palaeontology, Vol.33, Part 1. Doyle, P. (1985). Sexual Dimorphism in the Belemnite Youngibelus from the Lower Jurassic of Yorkshire. Palaeontology, Vol.28, Part 1. Edmunds, M., et al. (2016). A systematic account of the ammonite faunas of the Obtusum Zone (Sinemurian Stage, Lower Jurassic) from Marston Magna, Somerset, UK. Proceedings of the Geologists' Association, xxx. (Article in Press) Fernandez-Lopez, S.R. (2001). Upper Bathonian ammonites of the Catalan Basin (Tivissa and Cap Salou, Spain). Hantkeniana, 3. Frau, C., et al. (2016). Systematic palaeontology of the Perisphinctoidea in the Jurassic/Cretaceous boundary interval at Le Chouet (Drome, France), and its implications for biostratigraphy. Acta Geologica Polonica, Vol.66, Number 2. Fuchs, D. (2014). First evidence of Mastigophora (Cephalopoda: Coleoidea) from the early Callovian of La-Voulte-sur-Rhone (France). Gottingen Contributions to Geosciences, 77. Fuchs, D., T. Engeser, and H. Keupp (2007). Gladius shape variation in coleoid cephalopod Trachyteuthis from the Upper Jurassic Nusplingen and Solnhofen Plattenkalks. Acta Palaeontologica Polonica, 52(3). Hammer, O, et al. (2013). Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm. Acta Palaeontologica Polonica, 58(4). Haug, J.T., I. Kruta and C. Haug (2012). A possible fossil paralarva (Cephalopoda: Coleoidea) from the Solnhofen Lithographic Limestones (Upper Jurassic, southern Germany). Palaeontologia Electronica, Vol.15, Issue 3. Howarth, M.K. and J. Stephanov (1965). The Genus Kosmoceras in Bulgaria. Bulgarian Academy of Sciences, Vol.VII. Keupp, H. and V. Mitta (2013). Cephalopod jaws from the Middle Jurassic of central Russia. N.Jb.Geol.Palaont.Abh., 270/1. Keupp, H. and G. Schweigert (2008). Juraphyllites mimatensis (d'Orbigny, 1845)(Ammonoidea: Phylloceratida), a Tethyan immigrant in the Upper Pliensbachian of Franconia (Jurassic, Southern Germany). Palaeodiversity, 1. King, A. (2010). Fossil Nautiloids from the Upper Lias (Toarcian) 'Junction Bed' of the Ilminster Area, Somerset. Somerset Archaeology and Natural History. Klompmaker, A.A. and B.J.H.M. van den Berkmortel (2007). Earliest Jurassic (Hettangian) psiloceratoid ammonites from a subrosion pipe at Winterswijk, the eastern Netherlands. Netherlands Journal of Geosciences, 86-4. Kopic, J. and A. Wierzbowski (1988). Ammonites and Stratigraphy of the Bathonian and Callovian at Janusfjellet and Wimanfjellet, Sassenfjorden, Spitsbergen. Acta Palaeontologica Polonica, 33(2). Kulicki, C. and H. Szaniawski (1972). Cephalopod Arm Hooks from the Jurassic of Poland. Acta Palaeontologica Polonica, Vol.XVII, Number 3. Manley, E.C. (1977). Unusual Pattern Preservation in a Liassic Ammonite from Dorset. Palaeontology, Vol.20, Part 4. Mariotti, N., M. Santantonio and R. Weis (2007). Aalenian - Early Bajocian Belemnite Assemblage from Peri-Mediterranean Tethyan Sediments (Calabria, Southern Italy). Geologica Romana, 40. Martill, D.M. (1990). Predation on Kosmoceras by Semionotid Fish in the Middle Jurassic Lower Oxford Clay of England. Palaeontology, Vol.33, Part 3. Meister, C., J.-L. Dommergues and R.B. Rocha (2012). Ammonites from the Apoderoceras beds (Early Pliensbachian) in São Pedro de Muel (Lusitanian Basin, Portugal). Bulletin of Geosciences, 87(3). Mironenko, A.A. (2016). A new type of shell malformation caused by epizoans in Late Jurassic ammonites from Central Russia. Acta Palaeontologica Polonica, 61(3). Mironenko, A.A. (2015). The soft-tissue attachment scars in Late Jurassic ammonites from Central Russia. Acta Palaeontologica Polonica, 60(4). Mironenko, A.A. (2015). Soft-tissue preservation in the Middle Jurassic ammonite Cadoceras from Central Russia. Swiss J.Palaeontol., Vol.132, Number 4. Moliner, L. and F. Oloriz (2010). New Lower Kimmeridgian ataxioceratin ammonite from the Eastern Iberian Chain, Spain: Systematic, biogeographic, and biostratigraphic relevance. Acta Palaeonotologica Polonica, 55(1). Morton, N. (1983). Pathologically Deformed Graphoceras (Ammonitina) from the Jurassic of Skye, Scotland. Palaeontology, Vol.26, Part 2. Morton, N. (1975). Bajocian Sonniniidae and Other Ammonites from Western Scotland. Palaeontology, Vol.18, Part 1. Morton, N. (1973). The Aptychi of Sonninia (Ammonitina) from the Bajocian of Scotland. Palaeontology, Vol.16, Part 1. Morton, N. (1971). Some Bajocian Ammonites from Western Scotland. Palaeontology, Vol.14, Part 2. Nicosia, U. (1986). Ammonites/Epizoans Relationships in the Kimmeridgian of the Central Apenines. Geologica Rom., 25. O'Dogherty, L., et al. (2006). Carbon-isotope stratigraphy and ammonite faunal turnover for the Middle Jurassic in the Southern Iberian palaeomargin. Palaeogeography, Palaeoclimatology, Palaeoecology, 239. Oloriz, F. and F.J. Rodriguez-Tovar (1996). The Ammonite Sutneria from the Upper Jurassic of Southern Spain. Palaeontology, Vol.39, Part 4. Palframan, D.F.B. (1967). Variation and Ontogeny of Some Oxford Clay Ammonites: Distichoceras bicostatum (Stahl) and Horioceras baugieri (D'Orbigny), from England. Palaeontology, Vol.10, Part 1. Parent, H., A. Scherzinger and G. Schweigert (2008). Sexual phenomena in Late Jurassic Aspidoceratidae (Ammonoidea). Dimorphic correspondence between Physodoceras hermanni (Berkhemer) and Sutneria subeumela Schneid, and first record of possible hermaphroditism. Palaeodiversity, 1. Parsons, C.F. (1975). Ammonites from the Doulting Conglomerate Bed (Upper Bajocian, Jurassic) of Somerset. Palaeontology, Vol.18, Part 1. Prikryl, T., et al. (2012). Evidence for fish predation on a coleoid cephalopod from the Lower Jurassic Posidonia Shale of Germany. N.Jb.Geol.Palaont.Abh., 263/1. Pugaczewska, H. (1961). Belemnoids from the Jurassic of Poland. Acta Palaeontologica Polonica, Vol.VI, Number 2. Reitner, J. (2009). Preserved gill remains in Phragmoteuthis conocauda (Quenstedt, 1846-49)(Toarcian, Southern Western Germany). Berliner palaobiologische Abhandlungen, 10. Rogov, M.A. and A.A. Mironenko (2015). Patterns of the evolution of aptychi of Middle Jurassic to Early Cretaceous Boreal ammonites. Swiss J.Paleontol. Rogov, M.A., V.S. Mileev and S.B. Rosanov Lower Callovian of East Crimea: New Data on the Ammonite Fauna and Biostratigraphy. Geologica Carpathica. Sandoval, J. (2016). Ammonite assemblages and chronostratigraphy of the uppermost Bajocian-Callovian (Middle Jurassic) of the Murcia Region (Betic Cordillera, south-eastern Spain). Proceedings of the Geologists' Association, xxx. (Article in Press) Schlogl, J., et al. (2009). Early and Middle Callovian ammonites from the Pieniny Klippen Belt (Western Carpathians) in hiatal successions: unique biostratigraphic evidence from sediment-filled fissure deposits. N.Jb.Geol.Palaont.Abh., Vol.252/1. Schweigert, G. (2005). The occurrence of the Tethyan ammonite genus Meneghiniceras (Phylloceratina: Juraphyllitidae) in the Upper Pliensbachian of SW Germany. Stuttgarter Beitr.Naturk., Ser.B, Number 356. Vasicek, Z. and P. Skupien (2014). Recent Discoveries of Tithonian Ammonites in the Stramberk Limestone (Koutac Quarry, Outer Western Carpathians). Annales Societatis Geologorum Poloniae, Vol.84. Weis, R. and N. Mariotti (2007). A belemnite fauna from the Aalenian-Bajocian boundary beds of the Grand Duchy of Luxembourg (NE Paris Basin). Bollettino della Societa Paleontologica Italiana, 46(2-3). Weis, R., N. Mariotti and W. Riegraf (2012). The belemnite family Holcobelidae (Coleoidea) in the European Jurassic: systematics, biostratigraphy, palaeobiogeography and evolutionary trends. Palaeodiversity, 5. Wierzbowski, A. (1989). Ammonites and Stratigraphy of the Kimmeridgian at Wimanfjellet, Sassenfjorden, Spitsbergen. Acta Palaeontologica Polonica, 34(4). Wright, J.K. (1996). Perisphinctid Ammonites of the Upper Calcareous Grit (Upper Oxfordian) of North Yorkshire. Palaeontology, Vol.39, Part 2. Zeiss, A., A. Benetti and N. Pezzoni (1994). A new ammonite fauna from the Tithonian (Semiformiceras/Verruciferum Zone) of the Lessinian Alps, Verona Province, Northern Italy. Palaeopelagos Special Publication I. North America Frebold, H. (1961). The Jurassic Faunas of the Canadian Arctic - Middle and Upper Jurassic Ammonites. Geological Survey of Canada, Bulletin 74. Imlay, R.W. (1982). Late Bajocian Ammonites from Southern Alaska. United States Geological Survey, Professional Paper 1189. Imlay, R.W. (1981). Early Jurassic Ammonites from Alaska. United States Geological Survey, Professional Paper 1148. Imlay, R.W. (1981). Jurassic (Bathonian and Callovian) Ammonites in Eastern Oregon and Western Idaho. United States Geological Survey, Professional Paper 1142. Imlay, R.W. (1975). Stratigraphic Distribution and Zonation of Jurassic (Callovian) Ammonites in Southern Alaska. United States Geological Survey, Professional Paper 836. Imlay, R.W. (1962). Late Bajocian Ammonites from the Cook Inlet Region, Alaska. United States Geological Survey, Professional Paper 418-A. Imlay, R.W. (1961). Late Jurassic Ammonites from the Western Sierra Nevada, California. United States Geological Survey, Professional Paper 374-D. Imlay, R.W. (1953). Callovian (Jurassic) Ammonites from the United States and Alaska. Part 2. Alaska Peninsula and Cook Inlet Regions. United States Geological Survey, Professional Paper 249-B. Imlay, R.W. (1953). Callovian (Jurassic) Ammonites from the United States and Alaska. Part 1. Western Interior United States. Unites States Geological Survey, Professional Paper 249-A. Imlay, R.W. and D.L. Jones (1970). Ammonites from the Buchia Zones in Northwestern California and Southwestern Oregon. United States Geological Survey, Professional Paper 647-B. Jakobs, G.K. (1992). Toarcian (Lower Jurassic) Ammonite Biostratigraphy and Ammonite Fauna of North America. Ph.D. Thesis - The University of British Columbia. (697 pages) Jakobs, G.K. and P.L. Smith (1996). Latest Toarcian Ammonoids from the North American Cordillera. Palaeontology, Vol.39, Part 1. Longridge, L.M., et al. (2008). Middle and late Hettangian (Early Jurassic) ammonites from the Queen Charlotte Islands, British Columbia, Canada. Revue de Paleobiologie, Geneve, 27(1). Reeside, J.B. (1919). Some American Jurassic Ammonites of the Genera Quenstedticeras, Cardioceras and Amoeboceras, Family Cardioceratidae. United States Geological Survey Professional Paper 118. Rogov, M.A. and T.P. Poulton (2015). Aulacostephanid ammonites from the Kimmeridgian (Upper Jurassic) of British Columbia (western Canada) and their significance for correlation and palaeobiogeography. Bulletin of Geosciences, 90(1). Smith, P.L., et al. (1988). An ammonite association for the Lower Jurassic of Canada and the United States: the Pliensbachian. Can.J. Earth Sci., 25. South America/Central America/Caribbean Blau, J., et al. (2008). A new fossiliferous site of Lower Liassic (Upper Sinemurian) marine sediments from the southern Sierra Madre Oriental (Puebla, Mexico): ammonite fauna, biostratigraphy and description of Ectocentrites hillebrandti new species. Revista Mexicana de Ciencias Geologicas, Vol.25, Number 3. Dietze, V., et al. (2012). Ammonites and stratigraphy of a Lower Bajocian (Middle Jurassic) section in Sierra Chacaico (Neuquen Basin, Argentina). Zitteliana A, 52. Enay, R., et al. (1996). Upper Tithonian Ammonites and Floras from Chicama Basin, Northern Peruvian Andes. GeoResearch Forum, Vols. 1-2. Fernandez-Lopez, S.R. and G.B. Chong-Diaz (2014). Strigoceras septicarinatum (Jurassic Ammonoidea) in the Precordillera of North Chile: Paleobiogeographical and paleoenvironmental implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 409. Fernandez-Lopez, S.R. and G.B. Chong-Diaz (2011). Dimorphinites (Ammonoidea, Jurassic, Upper Bajocian) in the Precordillera of Northern Chile. Journal of Paleontology, 85(3). Fuchs, D. and H.-P. Schultze (2008). Trachyteuthis covachevici n.sp., a Late Jurassic Palaeopacific coleoid cephalopod. Fossil Record, 11(1). Imlay, R.W. (1938). Ammonites of the Taraises Formation of Northern Mexico. Bulletin of the Geological Society of America, Vol.49. Kulicki, C. and A. Wierzbowski (1983). The Jurassic Juvenile Ammonites of the Jagua Formation, Cuba. Acta Palaeontologica Polonica, Vol.28, Numbers 3-4. Myczynski, R. (1976). Organoceras gen.n. (Ammonoidea) from the Oxfordian of Cuba. Acta Palaeontologica Polonica, 21(4). Oloriz, F., A.B. Villasenor and I. Lopez-Palomino (2008). Middle Oxfordian ammonite biostratigraphy of the Lower Santiago Formation at Taman, San Luis Potosi, Mexico - with notes on Mexico-Caribbean ochetoceratins. Revista Mexicana de Ciencias Geologicas, Vol.25, Number 2. Parent, H. (2006). Oxfordian and Late Callovian Ammonite Faunas and Biostratigraphy of the Neuquen-Mendoza and Tarapaca Basins (Jurassic, Ammonoidea, Western South-America). Boletin del Instituto de Fisiografia y Geologia, 76(1-2) Parent, H. (1998). Upper Bathonian and Lower Callovian ammonites from Chacay Melehue (Argentina). Acta Palaeontologica Polonica, 43(1). Parent, H. and S.E. Cocca (2007). The Tithonian (Upper Jurassic) Ammonite Succession at Portada Covunco, Neuquen-Mendoza Basin, Argentina. Boletin del Instituto de Fisiografia y Geologia, 77(1-2). Parent, H., A. Scherzinger and G. Schweigert (2011). The Tithonian-Berriasian Ammonite Fauna and Stratigraphy of Arroyo Cieneguita, Neuquen-Mendoza Basin, Argentina. Boletin del Instituto de Fisiographia y Geologia, 79-81. Parent, H., et al. (2008). Passotia, A New Genus of Tithonian Oppeliid Ammonites (Late Jurassic, Ammonoidea: Haploceratoidea). Boletin del Instituto de Fisiografia y Geologica, 78(1-2). Riccardi, A.C. (2015) Remarks on the Tithonian-Berriasian ammonite biostratigraphy of west central Argentina. Volumina Jurassica, XIII(2). Riccardi, A.C. (2005). First Teuthid Cephalopod from the Lower Jurassic of South America (Neuquen Basin, Argentina). Geologica Acta, Vol.3, Number 002. Vennari, V.V., P.P. Alvarez and B. Aguirre-Urreta (2012). A new species of Andiceras Krantz (Cephalopoda: Ammonoidea) from the Late Jurassic-Early Cretaceous of the Neuguqen Basin, Mendoza, Argentina. Systematics and Biostratigraphy. Andean Geology, 39(1). Villasenor, A.B., F. Oloriz and C. Gonzalez-Arreola (2011). Lower Tithonian microconchiate simoceratins from eastern Mexico: Taxonomy, biostratigraphy, and palaeobiogeography. Acta Palaeontologica Polonica, 56(1). Zeiss, A. and H.A. Leanza (2010). Upper Jurassic (Tithonian) ammonites from the lithographic limestones of the Zapala Region, Neuquen Basin, Argentina. Beringeria, 41. Zell, P. and W. Stinnesbeck (2016). Salinites grossicostatum (Imlay, 1939) and S. finicostatum sp.nov. from the latest Tithonian (Late Jurassic) of northeastern Mexico. Boletin de la Sociedad Geologica Mexicana, Vol.68, Number 2. General Jurassic Ammonites Bardhan, S. and K. Halder (2000). Sudden Origin of Ribbing in Jurassic Paracenoceras (Nautiloidea) and its Bearing on the Evolution of Ribbing in Post-Triassic Nautiloids. Historical Biology, Vol.14. Bert, D. and P. Courville (2016). First record of Late Callovian to Early Oxfordian heteromorph ammonites. Annales de Paleontologie, xxx. (Article in Press). Brochwicz-Lewinski, W. (1975). On the Oxfordian Genus Subdiscosphinctes Malinowska, 1972, and Subgenus S. (Aureimontanites) nov. (Perisphinctidae, Ammonoidea). Acta Paleontologica Polonica, Vol.XX, Number 1. Brochwicz-Lewinski, W. and Z. Rozak (1976). Oxfordian Idoceratids (Ammonoidea) and Their Relation to Perisphinctes Proper. Acta Palaeontologica Polonica, 21(4). Brochwicz-Lewinski, W. and Z. Rozak (1976). Some Difficulties in Recognition of Sexual Dimorphism in Jurassic Perisphinctids (Ammonoidea). Acta Palaeontologica Polonica, 21(1). Cantu-Chapa, A. (2012). The Suture Line Patterns in Olcostephanidae and Spiticeratidae, Ammonites from the Upper Jurassic-Lower Cretaceous: Systematic Considerations. PM, 62. Cantu-Chapa, A. (1998). Suaritinae New Subfamily and Galeanites garcense New Genus and New Species of the Upper Jurassic Perisphinctaceae Ammonites. Revista Mexicana de Ciencias Geologicas, Vol.15, Number 1. Checa, A. and D. Martin-Ramos (1989). Growth and Function of Spines in the Jurassic Ammonite Aspidoceras. Palaeontology, Vol.32, Part 3. Chirat, R., et al. (2008). Developmental Integration Related to Buoyancy Control in Nautiloids: Evidence from Unusual Septal Approximation and Ontogenetic Allometries in a Jurassic Species. Palaeontology, Vol.51, Part 1. Cope, J.C.W. (1968). Propectinatites, a New Kimmeridgian Ammonite Genus. Palaeontology, Vol.11, Part 1. Dommergues, J.-L. and C. Meister (2013). Significance of intermediate forms in phyletic reconstruction of ammonites: Early Jurassic Phricodoceras case study. Acta Palaeontologica Polonica, 58(4). Donovan, D.T. and M.D. Crane (1992). The Type Material of the Jurassic Cephalopod Belemnotheutis. Palaeontology, Vol.35, Number 2. Donovan, D.T. and G.F. Forsey (1973). Systematics of Lower Liassic Ammonitina. The University of Kansas Paleontological Contributions, Paper 64. Fuchs, D. and H.-P. Schultze (2008). Trachyteuthis covacevichi n.sp., a Late Jurassic Palaeopacific coleoid cephalopod. Fossil Record, 11(1). Getty, T.A. (1973). A Revision of the Generic Classification of the Family Echinoceratidae (Cephalopoda, Ammonoidea) (Lower Jurassic). The University of Kansas Paleontological Contributions, Paper 63. Hoffmann, R., and H. Keupp (2010). The myth of the Triassic lytoceratid ammonite Trachyphyllites Arthaber, 1927, in reality an Early Jurassic Analytoceras hermanni Gumbel, 1861. Acta Geologica Polonica, Vol.60, Number 2. Jager, M. and R. Fraaye (1997). The Diet of the Early Toarcian Ammonite Harpoceras falciferum.Palaeontology, Vol.40, Part 2. Jeletzky, J.A. (1972). Morphology and Taxonomic Status of the Jurassic Belemnite 'Rhopaloteuthis' somaliensis Spath 1935. Palaeontology, Vol.15, Part 1. Klug, C., et al. (2016). Adaptations to squid-style high-speed swimming in Jurassic belemnitids. Biol.Lett., 12. (Thanks to edd for finding this one!) Lecuyer, C. and H. Bucher (2006). Stable isotope compositions of a Late Jurassic ammonite shell: a record of seasonal surface water temperatures in the southern hemisphere? eEarth, 1. Lehmann, U. (1979) The Jaws and Radula of the Jurassic Ammonite Dactylioceras. Palaeontology, Vol.22, Part 1. Lehmann, U. (1971). Jaws, Radula and Crop of Arnioceras (Ammonoidea). Palaeontology, Vol.14, Part 2. Liang, B. and P.L. Smith (1997). The Jurassic Ammonite Image Database 'Ammon'. Palaeontology, Vol.40, Part 1. Longridge, L.M., et al. (2009). The Impact of Asymmetries in the Elements of the Phragmocone of Early Jurassic Ammonites. Palaeontologia Electronica, Vol.12, Issue 1. Moyne, S. and P. Neige (2004). Cladistic analysis of the Middle Jurassic ammonite radiation. Geol.Mag. 141(2). Oloriz, F., P. Palmqvist and J.A. Perez-Claros (2002). Morphostructural constraints and phylogenetic overprint on sutural frilling in Late Jurassic ammonites. Lethaia, Vol.35. Parent, H., A. Scherzinger and G. Schweigert (2008). Sexual phenomena in Late Jurassic Aspidoceratidae (Ammonoidea). Dimorphic correspondence between Physodoceras hermanni (Berkhemer) and Sutneria subeumela Shneid, and first record of possible hermaphroditism. Palaeondiversity, 1. Parent, H., et al. (2008). Passotia, A New Genus of Tithonian Oppeliid Ammonites (Late Jurassic, Ammonoidea: Haploceratoidea). Boletin del Instituto de Fisiografia y Geologia, 78 (1-2). Parsons, C.F. (1977). Two New Bajocian Microconch Otoitid Ammonites and Their Significance. Palaeontology, Vol.20, Part 1. Schweigert, G. (2009). First three-dimensionally preserved in situ record of an aptychophoran ammonite jaw apparatus in the Jurassic and discussion of the function of aptychi. Berliner palaobiologische Abhandlungen, 10. Schweigert, G., A. Scherzinger and H. Parent (2002). The Volcanoceras lineage (Ammonoidea, Simoceratidae) - a tool for long-distance correlations in the Lower Tithonian. Stuttgarter Beitr.Naturk., Ser.B., Number 326. Schweigert, G., et al. (2007). Revision of the Middle Jurassic dimorphic ammonite genera Strigoceras/Cadomoceras (Strigoeratidae) and related forms. Stuttgarter Beitr.Naturk., Ser.B, Number 273. Senior, J.R. (1977). The Jurassic Ammonite Bredyia Buckman. Palaeontology, Vol.20, Part 3. Senior, J.R. (1971). Wrinkle-Layer Structures in Jurassic Ammonites. Palaeontology, Vol.14, Part 1. Stephanov, J. (1966). The Middle Jurassic Ammonite Genus Oecotraustes Waagen. Travaux Sur La Geologie De Bulgarie - Serie Paleontologie, Vol. VIII. Tajika, A., et al. (2015). Intraspecific variation of phragmocone chamber volumes chamber volumes throughout ontogeny in the modern nautilid Nautilus and the Jurassic ammonite Normannites. PeerJ, 3:e1306. Takeda, Y. and K. Tanabe (2015). Low durophagous predation on Toarcian (Early Jurassic) ammonoids in the northwestern Panthalassa shelf basin. Acta Palaeontologica Polonica, 60(4). Zell, P. and W. Stinnesbeck (2016). Paleobiology of the Latest Tithonian (Late Jurassic) Ammonite Salinites grossicostatum Inferred from Internal and External Shell Parameters. PLoS ONE, 11(1).
  4. Here is an ammonite concretion that I ran into the other day in a box. Most of the shell material was gone so I decided to polish it. I can remember were I got this, but it may have come from one of 11 boxes I found in a guys basment a very long time ago. Most of those were lobster concs, but i do remember a couple being ammos. Not a clue as to Genus or species but positive its Cretaceaus. Its not the best ammo, but far from the worst! RB
  5. Paleontologists examining slabs of limestone from the world-famous Jurassic Solnhofen lithographic limestones of Germany (which also produce Archaeopteryx, of course) ran across an 8.5 meter-long (almost 28 feet) drag mark left by an ammonite--with the very cephalopod that created it preserved in place at the end of the trail. It's technically called a tool mark, because it was created postmortem--not by a living organism. With apologies to the Rolling Stones ("Mother's Little Helper"), a description of the occurrence could probably be summed up in this sentence: What a drag it is rolling old. Because here's what happened. You get a dead ammonite drifting along near the sea bottom. It's still semi-buoyant, and part of its shell grazes the bottom as it gets dragged along by currents. Finally, the shell drops out of suspension and hits the ocean floor, coming to rest at the end of its lengthy drag mark. This is the longest drag mark yet discovered where the actual animal that created it is also found. See the complete technical article over at An 8.5 m long ammonite drag mark from the Upper Jurassic Solnhofen Lithographic Limestones, Germany.
  6. From the album WhodamanHD's Fossil collection.

    Ammonite, other than that i don't know anything about this one, I don't even remember where I got it.
  7. From the album WhodamanHD's Fossil collection.

    Ammonite, other than that i don't know anything about this one, I don't even remember where I got it.
  8. From the album WhodamanHD's Fossil collection.

    At this so oxidized, limonite is almost more proper. Don't know where it came from or the species.
  9. From the album WhodamanHD's Fossil collection.

    Im not sure the species or where it came from.
  10. From the album WhodamanHD's Fossil collection.

    Ammonite purchased online, from Madagascar. formation is unknown to me. Cretaceous period.
  11. From the album WhodamanHD's Fossil collection.

    This was the first fossil in my collection, yet the age, formation, species, and place of origin are all unknown to me. I assume it was from Madagascar. Bought for me as a present.
  12. I would like to introduce myself and my work. I grew up on a small farm in southwestern Ohio loaded with great locations for the collection of ordovician fossils. I earned my BA in geology and taught fro approximately 30 years. I retired from education in 2015 and have been working as a sculptor since. I do some animal and wildlife work, some fantasy sculptures and some paleontology themed pieces. I aways try to have my pieces looking and behaving in a lifelike and believable fashion as well as being technically accurate. My sculptures are created in clay, I then make rubber molds, cast a wax in the mold and then have the wax cast in bronze in a foundry. Sculpting in bronze is more expensive than resin but the material is strong and incredibly durable. I am currently working on another sculpture of a heteromorphic ammonite that I also need help with. Let me first attach sample of my sculptures to show you my work. Thank you.
  13. The Mark of the Mosasaur: A 90-million-year-old bite mark raises questions about what seagoing lizards really ate By Brian Switek on April 27, 2017 https://blogs.scientificamerican.com/laelaps/the-mark-of-the-mosasaur/ Gale, A., Kennedy, W., Martill, D. 2017. Mosasauroid predation on an ammonite – Pseudaspidoceras – from the Early Turonian of south-eastern Morocco. Acta Geologica Polonica. doi: 10.1515/agp-2017-0003 https://geojournals.pgi.gov.pl/agp/article/view/25689 Some other papers: Kauffman, E.G. and Kesling, R.V., 1960. An Upper Cretaceous ammonite bitten by a mosasaur. Contrib.Mus. Paleontol.Univ. Mich. 15:193-248 https://deepblue.lib.umich.edu/bitstream/handle/2027.42/48337/ID178.pdf;sequence=2 Kase, T., Johnston, P.A., Seilacher, A. and Boyce, J.B., 1998. Alleged mosasaur bite marks on Late Cretaceous ammonites are limpet (patellogastropod) home scars. Geology, 26(10), pp.947-950. http://geology.gsapubs.org/content/26/10/947.short Tsujita, C.J. and Westermann, G.E., 2001. Were limpets or mosasaurs responsible for the perforations in the ammonite Placenticeras?. Palaeogeography, Palaeoclimatology, Palaeoecology, 169(3), pp.245-270. http://www.sciencedirect.com/science/article/pii/S0031018201002206 Klompmaker, A.A., Waljaard, N.A. and Fraaije, R.H., 2009. Ventral bite marks in Mesozoic ammonoids. Palaeogeography, Palaeoclimatology, Palaeoecology, 280(1), pp.245-257. http://www.sciencedirect.com/science/article/pii/S0031018209002296 https://www.researchgate.net/profile/Adiel_Klompmaker/publication/229134933_Ventral_bite_marks_in_Mesozoic_ammonoids/links/0deec51cff63b6dcba000000.pdf Hewitt, R.A. and Westermann, G.E.G., 1990. Mosasaur tooth marks on the ammonite Placenticeras from the Upper Cretaceous of Alberta, Canada. Canadian Journal of Earth Sciences, 27(3), pp.469-472. http://www.nrcresearchpress.com/doi/abs/10.1139/e90-042#.WRPHjlKZMk5 Yours, Paul H.
  14. Greetings! I mentioned in another topic, that I will post some of my heteromorph findings and prepwork. The locality is in Hungary, and is an abandoned quarry that produced cement for the local factory. It is rich in fossils, but it was a big underwater slope, and because of this the fossils only found in shallow beds, between redeposited layers of "nothing" and always in condensed form, and the bigger pieces fossilized mainly in fragments. Another problem is, that the compressed marls contains only stone molds, sometimes with slick&slides on them, and the matrix and fossil is hard to distinguish There are some pieces that have the imprints of spines. Here is one that is a big question for me, because the spine is visible, (at least at 1 section that broke out with some luck) but it is only a thin imprint in the stone, and I really like to have some opinions, what to do with it... I began prepping, but if i only touch the stone with the vibrotool, I see nothing what I do onward, because the fine dust completely obscure the spine, so I could work as I imagine they should be, and I fear that I will destroy it (and the further ones) completely, and I am uncertain to try to fake them from the matrix (But it is already nearly the same) so this is one option. Another problem is that I need to remove a lot of matrix, and I have bitter expectations what will happen with the underlying spines... So there is a second option to do nothing with it, but I like more to have a good prepared spiny Crioceratites in my collection, so I will try anyway The first spine from the living chamber is currently "faked" because I do not found the spine imprint yet. The second spine is original (as the stone broke off of it) (the other fossil is an Orbitolina, but I am not shure) The sandy marls are soft and the stone molds that have a thin calcite shells are sometimes found in calcite concretions, the calcite coating is very thin and always damaged. So preparing the material is a challenge. Sometimes the spines are preserved, but always broke off. You will see on the pictures below, that the pieces are extremly fragile. Maybe there is a way to preserve, the spines or put them back while preparing? Here is a remains of a spiny one: Here is some finished or nearly finished pieces: From the softer sandy marls: Freshly found Crioceratites (nolani?): Gluing together the pieces: Restoring the missing part with magic sculpt, and coloring it with powdered stone to imitate the stone molds thin calcite coating. (the color was really hard to match, and I am not satisfied with it, but I done my best with it) The complete piece, prepared: Here is some pieces from the condensed marls: Freshly found Crioceratites (duvali?): Gluing together the pieces: Restoring the missing parts with magic sculpt, and stone chips from the matrix, and coloring it with powdered matrix There are acrylic lacquer applied, so the fossil is better distinguished from the matrix The complete prepwork: Here is another heteromorph, Anahamulina (acuaria?): After prepping out of stone: (need further work) With kind regards
  15. "The "death drag" of a prehistoric "squid" - or ammonite - made 150-million-years-ago has been preserved as an incredible fossil. The animal's shell made the 8.5m-long mark as it drifted along the seafloor after its death." Article HERE. Enjoy.
  16. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since May 2, 2017. Phylum Mollusca Class Cephalopoda - Ammonites, Nautiloids and Their Allies (Ordovician - Triassic) Ordovician Ordovician Cephalopods - Africa/Middle East Evans, D.H., M. Ghobadi Pour and L.E. Popov (2013). Review of Early to Mid Ordovician orthoconic cephalopods from Iran. Bulletin of Geosciences, 88(1). Kröger, B. and B. Lefebvre (2012). Palaeogeography and palaeoecology of early Floian (Early Ordovician) cephalopods from the Upper Fezouata Formation, Anti-Atlas, Morocco. Fossil Record, 15(2). Ordovician Cephalopods - Asia/Malaysia/Pacific Islands Kobayashi, T. (1987). Comparison of Ordovician Cephalopods between Australia and Eastern Asia. Proc. Japan Acad., Series B, Vol.63, Number 9. Kobayashi, T. (1987). On the Manchuroceras and Piloceras Provinces in the Ordovician Period. Proc. Japan Acad., Series B, Vol63, Number 9. Kobayashi, T. (1987). Ordovician Cephalopods of Yangtze and Neighboring Areas. Proc. Japan Acad., Series B, Vol.63, Number 7. Kobayashi, T. (1987). Ordovician Cephalopods in Hwangho Basin, Eastern Asia. Proc. Japan Acad., Series B, Vol.63, Number 7. Niko, S. and M. Sone (2015). Gondwanan nautiloid cephalopods from the Ordovician of Myanmar. Paleontological Research, Vol.19, Number 4. Niko, S. and M. Sone (2014). Actinocerid cephalopods from the Ordovician of Myanmar, and their paleobiogeographic implications for northern Gondwana. Paleontological Research, Vol.18, Number 2. Ordovician Cephalopods - Australia/New Zealand Kobayashi, T. (1987). Comparison of Ordovician Cephalopods between Australia and Eastern Asia. Proc. Japan Acad., Series B, Vol.63, Number 9. Stait, B. and J. Laurie (1985). Ordovician nautiloids of central Australia, with a revision of Madiganella Teichert & Glenister. BMR Journal of Australian Geology & Geophysics, 9. Ordovician Cephalopods - Europe (including Greenland and Siberia) Evans, D.H. and A.H. King (1990). The Affinities of Early Oncocerid Nautiloids from the Lower Ordovician of Spitsbergen and Sweden. Palaeontology, Vol.33, Part 3. King, A.H. (1998). A Review of the Cyclostomiceratid Nautiloids, Including New Taxa from the Ordovician of Oland, Sweden. Palaeontology, Vol.41, Part 2. Kröger, B. (2014). The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden. European Journal of Taxonomy, 41. Kröger, B. (2007). Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. Acta Palaeontologica Polonica, 52(3). Kröger, B. (2004). Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia. Acta Palaeontologica Polonica, 49(1). Kröger, B. and H. Mutvei (2005). Nautiloids with Multiple Paired Muscle Scars from Lower-Middle Ordovician of Baltoscandia. Palaeontology, Vol.48, Part 4. Kröger, B., Y. Zhang and M. Isakar (2009). Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups. Geobios, 42. Kröger, B., et al. (2011). Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationships. Fossil Record, 14(1). Manda, S. (2008). Trocholites Conrad, 1838 (Nautiloidea, Tarphycerida) in the Middle Ordovician of the Prague Basin and its palaeobiogeographical significance. Bulletin of Geosciences, Vol.83,3. Rasmussen, J.A. and F. Surlyk (2012) Rare finds of the coiled cephalopod Discoceras from the Upper Ordovician of Bornholm, Denmark. Bulletin of the Geological Society of Denmark, Vol.60. Strand, T. (1933). The Upper Ordovician Cephalopods of the Oslo Area. Norsk geol.tidsskr., XIV. Ordovician Cephalopods - North America Frey, R.C. (1995). Middle and Upper Ordovician Nautiloid Cephalopods of the Cincinnati Arch Region of Kentucky, Indiana and Ohio. U.S. Geological Survey Professional Paper 1066-P. Kesling, R.V. (1961). A New Species of Billingsites, an Ascoceratid Cephalopod, from the Upper Ordovician Ogontz Formation of Michigan. Contributions from the Museum of Paleontology - The University of Michigan, Vol.XVII, Number 3. Kröger, B. and E. Landing (2008). Onset of the Ordovician cephalopod radiation - evidence from the Rochdale Formation (middle Early Ordovician, Stairsian) in eastern New York. Geol.Mag., 145(4). Ordovician Cephalopods - South America/Central America/Caribbean Cichowolski, M. (2009). A review of the endocerid cephalopod Protocyptendoceras from the Floian (Lower Ordovician) of the Eastern Cordillera, Argentina. Acta Palaeontologica Polonica, 54(1). Cichowolski, M. and N.E. Vaccari (2011). The oldest record of Eothinoceratidae (Ellesmerocerida, Nautiloidea): Middle Tremadocian of the Cordillera Oriental, NW Argentina. Geological Journal, 46(1). Cichowolski, M., et al. (2014). The nautiloid Family Eothinoceratidae from the Floian of the Central Andean Basin (NW Argentina and South Bolivia). Geological Journal, 50(6). Kobayashi, T. (1987). Ordovician Cephalopods in the Andes, South America. Proc. Japan Acad., Series B, Vol.63, Number 9. Mestre, A., M. Beresi and S. Heredia (2013). Nautiloid Cephalopod Concentration Beds in the San Juan Formation (Middle Darriwilian) of the Argentine Precordillera. In: Conodonts from the Andes. Albanesi, G.L. and G. Ortega (eds.), Publicacion Especial Number 13. General Ordovician Cephalopods Evans, D.H. (1992). Phragmocone Implosion in Ordovician Nautiloids and the Function of Siphonal Diaphragms and Endocones. Palaeontology, Vol.35, Part 3. Kröger, B., T. Servais, and Y. Zhang (2009). The Origin and Initial Rise of Pelagic Cephalopods in the Ordovician. PLoS ONE, 4(9). Mutvei, H. (2015). Characterization of two new superorders Nautilosiphonata and Calciosiphonata and a new order Cyrtocerinida of the subclass Nautiloidea; siphuncular structure in the Ordovician nautiloid Bathmoceras (Cephalopoda). GFF, Vol.137, Part 1. Mutvei, H. (1997). Siphuncular structure in Ordovician endocerid cephalopods. Acta Palaeontologica Polonica, 42(3). Teichert, C. and R.E. Crick (1974). Endosiphuncular Structures in Ordovician and Silurian Cephalopods. The University of Kansas Paleontological Contributions, Paper 71. Silurian Silurian Cephalopods - Africa/Middle East Turek, V. (2008). Boionautilus gen.nov. from the Silurian of Europe and North Africa (Nautiloidea, Tarphycerida). Bulletin of Geosciences, 83(2). Silurian Cephalopods - Asia/Malaysia Bogolepova, O.K. and C.H. Holland (1995). Concentrations of Silurian nautiloid cephalopods from Russia and Kazakhstan. Acta Palaeontologica Polonica, 40(4). Kobayashi, T. (1983). On the Silurian Cephalopod Faunule from Mt. Yokokura, Kochi Prefecture, Shikoku, Japan. Proc. Japan Acad., 59, Series B. Silurian Cephalopods - Europe (including Greenland and Siberia) Bogolepova, O.K. and C.H. Holland (1995). Concentrations of Silurian nautiloid cephalopods from Russia and Kazakhstan. Acta Palaeontologica Polonica, 40(4). Gnoli, M. and P. Serventi (2006). A Further Oncocerid Nautiloid from the Upper Silurian of Southwest Sardinia. Geo.Alp, Vol.3. Histon, K., B. Hubmann, and F. Messner (2010). A preliminary study of the upper Silurian nautiloid cephalopods from the Eggenfeld section (Graz Paleozoic, Austria). Bollettino della Societa Paleontologica Italiana, 49(1). Holland, C.H. (1998). The Nautiloid Cephalopod Order Actinocerida in the British Silurian. Palaeontology, Vol.41, Part 1. Holland, C.H. (1965). On the Nautiloid Leurocycloceras from the Ludlovian of Wales and the Welsh Borderland. Palaeontology, Vol.7, Part 4. Manda, Š. (2008). Palaeoecology and palaeogeographic relations of the Silurian phragmoceratids (Nautiloidea, Cephalopoda) of the Prague Basin, Bohemia. Bulletin of Geosciences, 83(1). Manda, Š. (2007). New Silurian nautiloids Phragmoceras Broderip, 1839, and Tubiferoceras Hedstrom, 1917, from the Prague Basin (Bohemia). Bulletin of Geosciences, 82(2). Manda, Š. and V. Turek (2015). Colour patterns on Silurian orthocerid and pseudorthocerid conchs from Gotland - palaeoecological implications. Estonian Journal of Earth Sciences, 64(1). Manda, Š. and V. Turek (2009). Minute Silurian oncocerid nautiloids with unusual colour patterns Acta Palaeontologica Polonica, 54(3). Manda, Š. and V. Turek (2009). A Silurian oncocerid with preserved colour pattern and muscle scars (Nautiloidea). Bulletin of Geosciences, 84(4). Mutvei, H. (2012). Siphuncular structure in Silurian discosorid and ascocerid nautiloids (Cephalopoda) from Gotland, Sweden: implications for interpretation of mode of life and phylogeny. GFF, Vol.00, Part x. Serventi, P., M. Gnoli, and L. Simonetto (2010). Actinocerid cephalopods from the Silurian of the Carnic Alps (Italy). Bollettino della Societa Paleontologica Italiana, 49(1). Turek, V. (2008). Boionautilus gen.nov. from the Silurian of Europe and North Africa (Nautiloidea, Tarphycerida). Bulletin of Geosciences, 83(2). Silurian Cephalopods - North America Foerste, A.F. (1924). Silurian Cephalopods of Northern Michigan. Contributions from the Museum of Geology - The University of Michigan, Vol.II, Number 3. (114 pages) General Silurian Cephalopods Gnoli, M. (2003). Northern Gondwanan Siluro-Devonian Palaeogeography Assessed by Cephalopods. Palaeontologia Electronica, 5(2). Hewett, R.A. (1984). Growth Analysis of Silurian Orthoconic Nautiloids. Palaeontology, Vol.27, Part 4. Kolebaba, I. (2002). A contribution to the theory of the cameral mantle in some Silurian Nautiloidea (Mollusca, Cephalopoda). Bulletin of the Czech Geological Survey, Vol.77, Number 3. Stridsberg, S. (1988). A Silurian Cephalopod Genus with a Reinforced Frilled Shell. Palaeontology, Vol.31, Part 3. Turek, V. and Š. Manda (2012). "An endocochleate experiment" in the Silurian straight-shelled cephalopod Sphooceras. Bulletin of Geosciences, 87(4). Turek, V. and Š. Manda (2011). Colour pattern polymorphism in Silurian nautiloid Phragmoceras Broderip, 1839. Bulletin of Geosciences, 86(1). Devonian Devonian Cephalopods - Africa/Middle East Ashouri, A.R. and A. Yamini. Cephalopods and Stratigraphical Position of Cephalopod Bed of Shishtu Formation, Iran. Archive of SID. Hairapetian, V. and D. Korn (2011). Phylogenetic analysis of the family Beloceratidae (Ammonoidea; Late Devonian) and a new Beloceras species from eastern Iran. Bulletin of Geosciences, 86(4). Klug, C. (2007). Sublethal injuries in Early Devonian cephalopod shells from Morocco. Acta Palaeontologica Polonica, 52(4). Kroger, B., C. Klug, and R. Mapes (2005). Soft-tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco. Acta Palaeontologica Polonica, 50(2). Devonian Cephalopods - Asia/Malaysia/Pacific Islands Niko, S. and T. Nishida (2003). Devonohelicoceras hidaense, a new torticonic oncocerid (Cephalopoda) from the Lower Devonian of Central Japan. Proc. Japan Acad., Series B, Vol.79, Number 7. Niko, S. and T. Nishida (2003). First oncocerid cephalopod from Japan. Proc. Japan Acad., Series B, Vol.79, Number 4. Devonian Cephalopods - Australia/New Zealand Jenkins, T.B.H. (1968). Famennian Ammonoids from New South Wales. Palaeontology, Vol.11, Part 4. Jenkins, T.B.H. (1966). The Upper Devonian Index Ammonoid Cheiloceras from New South Wales. Palaeontology, Vol.9, Part 3. Devonian Cephalopods - Europe (including Greenland and Siberia) De Baets, K., et al. (2013). The first record of Early Devonian ammonoids from Belgium and their stratigraphic significance. Geologica Belgica, 16/3. House, M.R. (2002). Devonian (Givetian) Goniatites from Woolborough, Barton and Lummaton, South Devon. Geoscience in south-west England, 10. Kroger, B., C. Klug, and R. Mapes (2005). Soft-tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco. Acta Palaeontologica Polonica, 50(2). Makowski, H. (1991). Dimorphism and evolution of the goniatite Tornoceras in the Famennian of the Holy Cross Mountains. Acta Palaeontologica Polonica, 36(3). Manda, Š. and V. Turek (2011). Late Emsian Rutoceratoidea (Nautiloidea) from the Prague Basin, Czech Republic: Morphology, Diversity and Palaeoecology. Palaeontology, Vol.54, Part 5. Manda, Š. and V. Turek (2009). Revision of the Pragian Rutoceratoidea Hyatt, 1884 (Nautiloidea, Oncocerida) from the Prague Basin. Bulletin of Geosciences, 84(1). Montesinos, J.R. and J.L. Garcia-Alcalde (1996). An Occurrence of the Auguritid Ammonoid Celaeceras in the Lower Devonian of Northern Spain. Palaeontology, Vol.39, Part 1. Turek, V. (2007). Systematic position and variability of the Devonian nautiloids Hercoceras and Ptenoceras from the Prague Basin (Czech Republic).Bulletin of Geosciences, 82(1). Turek, V. (2007). Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy. Acta Palaeontologica Polonica, 54(3). Woroncowa-Marcinowska, T. (2011). Late Famennian (Devonian) Balviinae (Ammonoidea) from the Holy Cross Mountains, Poland. Acta Geologica Polonica, Vol.61, Number 1. Woroncowa-Marcinowska, T. (2006). Upper Devonian Goniatites and Co-Occurring Conodonts from the Holy Cross Mountains: Studies of the Polish Geological Institute Collections. Annales Societatis Geologorum Poloniae, Vol.76. Devonian Cephalopods - North America Becker, R.T. and R.H. Mapes (2010). Uppermost Devonian ammonoids from Oklahoma and their palaeobiogeographic significance. Acta Geologica Polonica, Vol.60, Number 2. Foerste, A.F. (1927). Devonian Cephalopods from Alpena in Michigan. Contributions from the Museum of Geology - The University of Michigan, Vol.II, Number 9. House, M.R. (1978). Devonian Ammonoids from the Appalachians and Their Bearing on International Zonation and Correlation. Special Papers in Palaeontology, Number 21. House, M.R. and A.E.H. Pedder (1963). Devonian Goniatites and Stratigraphical Correlations in Western Canada. Palaeontology, Vol.6, Part 3. Stanley, G.D. and C. Teichert (1976). Lamellorthoceratids (Cephalopoda, Orthoceroidea) from the Lower Devonian of New York. The University of Kansas Paleontological Contributions, Paper 86. General Devonian Cephalopods De Baets, K., C. Klug and D. Korn (2011). Devonian pearls and ammonoid-endoparasite co-evolution. Acta Palaeontologica Polonica, 56(1). House, M.R. (1973). An Analysis of Devonian Goniatite Distributions. Special Papers in Palaeontology, Number 12. House, M.R. (1960). Abnormal Growth in Some Devonian Goniatites. Palaeontology, Vol.3, Part 2. House, M.R. and J.D. Price (1985). New Late Devonian Genera and Species of Tornoceratid Goniatites. Palaeontology, Vol.28, Part 1. Korn, D. (1992). The Ammonoid Faunal Change Near the Devonian-Carboniferous Boundary. Annales de la Societe geologique de Belgique, T.115, fasc.2. Korn, D. (1992). Heterochrony in the evolution of Late Devonian Ammonoids. Acta Palaeontologica Polonica, 37(1). Korn, D., et al. (2011). Beloceras, the most multilobate late Devonian ammonoid. Bulletin of Geosciences, 86(1). Carboniferous Carboniferous Cephalopods - Africa/Middle East Klug, C., K. De Baets and D. Korn (2016. Exploring the limits of morphospace: Ontogeny and ecology of late Visean ammonoids from the Tafilalt, Morocco. Acta Palaeontologica Polonica, 61(1). Carboniferous Cephalopods - Australia/New Zealand Brown, D.A., K.S.W. Campbell and J. Roberts (1965). A Visean Cephalopod Fauna from New South Wales. Palaeontology, Vol.7, Part 4. Carboniferous Cephalopods - Europe (including Greenland and Siberia) Bisat, W.S. (1957). Upper Visean Goniatites from the Manifold Valley, North Staffordshire. Palaeontology, Vol.1, Part 1. Butcher, N.E. and F. Hodson (1960). A Review of the Carboniferous Goniatite Zones in Devon and Cornwall. Palaeontology, Vol.3, Part 1. Foord, A.H. (1897). Monograph of the Carboniferous Cephalopoda of Ireland. The Palaeontographical Society, London. (470 pages, 24 MB download) Ford, T.D. (1965). The Palaeoecology of the Goniatite Bed at Cowlow Nick, Castleton, Derbyshire. Palaeontology, Vol.8, Part 1. Hodson, F. and E.W.J. Moore (1959). Goniatites striatus and Related Forms from the Visean of Ireland. Palaeontology, Vol.1, Part 4. Matthews, S.C. (1970). A New Cephalopod Fauna from the Lower Carboniferous of East Cornwall. Palaeontology, Vol.13, Part 1. Phillips, D. (1985). The Nautiloid Brachycycloceras in the Upper Carboniferous of Britain. Palaeontology, Vol.28, Part 2. Riley, N.J. (1996). Mid-Dinantian Ammonoids from the Craven Basin, North-West England. Special Papers in Palaeontology, Number 53. Trewin, N.H. (1970). A Dimorphic Goniatite from the Namurian of Cheshire. Palaeontology, Vol.13, Part 1. Carboniferous Cephalopods - North America Furnish, W.M., et al. (1964). The Upper Mississippian Ammonoid Delepinoceras in North America. Palaeontology, Vol.7, Part 2. Gordon, M. (1964). California Carboniferous Cephalopods. Geological Survey Professional Paper 483-A, United States Government Printing Office. Gordon, M. (1964). Carboniferous Cephalopods of Arkansas. Geological Survey Professional Paper 460, United States Government Printing Office. Gordon, M. (1957). Mississippian Cephalopods of Northern and Eastern Alaska. Geological Survey Professional Paper 283, United States Government Printing Office. Korn, D. and A.L Titus (2011). Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah). Bulletin of Geosciences, 86(1). Kroger, B. and R.H. Mapes (2005). Revision of Some Common Carboniferous Genera of North American Orthocerid Nautiloids. J. Paleont., 79(5). Miller, A.K. and H.F. Garner (1953). Lower Mississippian Cephalopods of Michigan. Part I. Orthoconic Nautiloids. Contributions from the Museum of Paleontology - The University of Michigan, Vol.X, Number 7. Miller, A.K. and H.F. Garner (1955). Lower Mississippian Cephalopods of Michigan. Part III. Ammonoids and Summary.Contributions from the Museum of Paleontology - The University of Michigan, Vol.XII, Number 8. Miller, A.K. and H.F. Garner (1953). Lower Mississippian Cephalopods of Michigan. Part II. Coiled Nautiloids.Contributions from the Museum of Paleontology - The University of Michigan, Vol.XI, Number 6. Miller, A.K., J.H. Lane and A.G. Unklesbay (1947). A Nautiloid Cephalopod Fauna from the Pennsylvanian Winterset Limestone of Jackson County, Missouri. University of Kansas Paleontological Contributions, Mollusca Article 2. Niko, S. and R.H. Mapes (2015). Early Carboniferous nautiloids from the Ruddell Shale Member in Arkansas, Midcontinent North America. Paleontological Research, Vol.19, Number 1. Carboniferous Cephalopods - South America/Central America/Caribbean Riccardi, A.C. and N. Sabattini (1975). Cephalopoda from the Carboniferous of Argentina. Palaeontology, Vol.18, Part 1. General Carboniferous Cephalopods Doguzhaeva, L.A., R.H. Mapes, and H. Mutvei (2003). The Shell and Ink Sac Morphology and Ultrastructure of the Late Pennsylvanian Cephalopod Donovaniconus and its Phylogenetic Significance. Berliner Palaobiol.Abh., 03. Figge, K. (1968). A Goniatite Fauna from the Visean-Namurian Boundary. Palaeontology, Vol.11, Part 2. Hodson, F. and W.H.C. Ramsbottom (1973). The Distribution of Lower Carboniferous Goniatite Faunas in Relation to Suggested Continental Reconstructions for the Period. Special Papers in Palaeontology, Number 12. Holdsworth, B.K. (1965). The Namurian Goniatite Nuculoceras stellarum (Bisat). Palaeontology, Vol.8, Part 2. Kroger, B. and R.H. Mapes (2004). Lower Carboniferous (Chesterian) Embryonic Orthoceratid Nautiloids. J.Paleont., 78(3). Permian Barskov, I.S., T.B. Leonova and O.P. Shilkovsky (2014). Middle Permian Cephalopods of the Volga-Ural Region. Paleontological Journal, Vol.48, Number 13. Lucas, S.G., K. Krainer and L.F. Rinehart (2014). Nautiloids from the Early Permian Yeso Group, Otero County, New Mexico. In: Geology of the Sacramento Mountains Region. Rawling, G., et al. (eds.), New Mexico Geological Society 65th Annual Field Conference Guidebook. Mapes, R.H., et al. (2007). A Newly Hatched Coiled Nautiloid from the Permian of Italy. J.Paleont., 81(5). Miller, A.K. and W. Youngquist (1947). Lower Permian Cephalopods from the Texas Colorado River Valley. University of Kansas Publications, Article 1. Niko, S., M. Sone and M.S. Leman (2005). A new Permian species of Mooreoceras (Cephalopoda: Orthocerida) from northwestern Peninsular Malaysia. Proc. Japan Acad., Series B, Vol.81, Number 8. Shen, S., L. Mu, and Y.D. Zakharov (2004). Roadoceras (Permian Ammonoidea) from the Qubuerga Formation in the Mt. Everest Area in Southern Tibet. Gondwana Research, Vol.7, Number 3. Teichert, C. and M. Rilett (1974). Revision of Permian Ecca Series Cephalopods, Natal, South Africa. The University of Kansas Paleontological Contributions, Paper 68. Teichert, C. and H.O. Fletcher (1943). A Permian ammonoid from New South Wales and the correlation of the Upper Marine Series. Records of the Australian Museum, 21(3). Triassic Arkadiev, V.V. and M.N. Vavilov (1984). Mid Triassic Parapopanoceratidae and Nathorstididae (Ammonoidea) of Boreal Region: Internal Structure, Ontogeny and Phylogenetic Patterns. Geobios, Number 17/4. Dagys, A.S. and H. Keupp (1998). Internal ventral keels in Triassic ceratid ammonoids: description and functional interpretation as muscle scars. Z.dt.geol.Ges., 149/1. Doguzhaeva, L.A., et al. (2004). Bituminous soft body tissues in the body chamber of the late Triassic ceratitid Austrotrachyceras from the Austrian Alps. Mitt.Geol.-Palaönt.Inst.Univ. Hamburg, Vol.88. Donovan, D.T. and M.K. Howarth (1982). A Rare Lytoceratid Ammonite from the Lower Lias of Radstock. Palaeontology, Vol.25, Part 2. Donovan, D.T. (1966). The Lower Liassic Ammonites Neomicroceras Gen.Nov. and Paracymbites. Palaeontology, Vol.9, Part 2. Dzik, J. (1990). The Ammonite Acrochordiceras in the Triassic of Silesia. Acta Palaeontologica Polonica, 35(1-2). Estep, J.W., S.G. Lucas and C.M. Gonzalez-Leon (1997). Middle Triassic Ammonites from Sonora, Mexico. Revista Mexicana de Ciencias Geologicas, Vol.14, Number 2. Gomez-Luna, M.E. and A. Martinez-Cortes (1997). Relationships and Differences Between the Triassic Ammonoid Successions of Northwestern Sonora, Mexico, and West-Central Nevada, U.S.A.. Revista Mexicana de Ciencias Geologicas, Vol.14, Number 2. Hyatt, A. and J.P. Smith (1905). The Triassic Cephalopod Genera of America. United States Geological Survey Professional Paper 40, Series C, Systematic Geology and Paleontology, 74. (399 Pages) Klug, C. (2001). Functional morphology and taphonomy of nautiloid beaks from the Middle Triassic of southern Germany. Acta Palaeontologica Polonica, 46(1). Klug, C. and A. Lehmkuhl (2004). Soft-tissue attachment structures and taphonomy of the Middle Triassic nautiloid Germanonautilus. Acta Palaeontologica Polonica, 49(2). Kummel, B. (1953). American Triassic Coiled Nautiloids. U.S. Geological Survey Professional Paper 250. McGowan, A.J. and W. Kiessling (2013). Using abundance data to assess the relative role of sampling biases and evolutionary radiations in Upper Muschelkalk ammonoids. Acta Palaeontologia Polonica, 58(3). Nakazawa, K., K. Nakamura and G. Kimura (1987). Discovery of Otoceras boreale Spath from West Spitsbergen. Proc. Japan Acad., Series B, Vol.63, Number 6. Nichols, K.M. and N.J. Silberling (1979). Early Triassic (Smithian) Ammonites of Paleoequatorial Affinity from the Chulitna Terrane, South-Central Alaska. Geological Survey Professional Paper 1121-B, United States Government Printing Office. Seyed-Emami, K., et al. (2009). Upper Triassic (Norian) Cephalopods from the Ekrasar Formation (Shemshak Group) of Northern Alborz, Iran. Revista Italiana di Paleontologia e Stratigrafia, Vol.115, Number 2. Smith, J.P. (1932). Lower Triassic Ammonoids of North America. U.S. Geological Survey Professional Paper 167. Tozer, E.T. (1972). Observations on the Shell Structure of Triassic Ammonoids. Palaeontology, Vol.15, Part 4. Ware, D., et al. (2015). High-resolution biochronology and diversity dynamics of the Early Triassic ammonoid recovery: The Dienerian faunas of the Northern Indian Margin. Palaeogeography, Palaeoclimatology, Palaeoecology, 440. Zakharov, Y.D. and N.M. Abnavi (2013). The ammonoid recovery after the end-Permian mass extinction: Evidence from the Iran-Transcaucasia area, Siberia, Primorye, and Kazakhstan. Acta Palaeontologica Polonica, 58(1).
  17. After splitting some clay shales this morning I wondered how these two fossils would have come together. Thank you for looking
  18. From the album Fossil Diagrams

  19. I'd very much like to buy some unprepared ammonites and prepare them myself. Does anyone know who I could talk to about this?
  20. This morning I was moving some of my fossil crab concretions around and tryin to orginize a bit and ran into this Beauty! It had collected a bunch of dust. I had to wash it off even! Now, finally, its in the house. Just wish these pics could do the color on this thing some justice, but im not good at photography. Its got some wonderful purples that you can not see. My son found this many years ago and it took me many hours of prep with lots and lots of sanding and then a coating of some kind of 2 part system, but it came out purty good. RB
  21. Hello everyone! I need a little help on a few fossils from Big Brook. I'm trying to find out the genus of this ammonite and echinoid. I'm particularly curious about the echinoid, as I haven't heard of them being there. The last appears to be a tooth with some socket attached (under a loop, the root part looked reptilian so im leaning towards plesiosaur not not sure). Thanks in advance! -Frank
  22. Hi All Avid Fossil Walker , love what you can fiind, Please find Enclosed my First Prepping Attempts, On my Finds..... Love Any Feedback , good or Bad.. Its all a Learning Curve for me Cheers Bob Before and After Photos another before and after another pair last Ones my fav
  23. From the album 2017 new additions

    From our trip this year we found a great piece..

    © Highland Designs 2017

  24. https://youtu.be/5A0RvC18LHE Well hello everyone. It's been a while as we have been pretty busy. We took Easter Break and did our annual tour for crystals and Ammonites. Found a couple of nice ones but no big ones so far. Enjoy the video!!