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Found 147 results

  1. I think this is a bivalve. I'm curious as to whether or not I'm right, and what it's age might be.
  2. Hi all, I found those bivalves on Milnerton beach (Cape Town, South Africa). The beach is known to have fossil shark teeth and whale bones, but I don't know if they have fossil seashells. They do have modern ones. Those shells, because of many different features, do make me think that they are fossil. Anyways, I'm interested in 2, if not 3 things: • Species • Fossil or modern • (if fossil) how old If this species is (locally) extinct, then I think I can quite confidently put them down as fossil, but otherwise I'm not sure. The things that make me think that they are fossil are: • they are very thick • they are dull • they feel very hard (a lot like stone) Those features are applicable with shells found on the Zandmotor (NL), to see if they are modern or fossil; whether they are applicable in Cape Town I have no clue. Thanks in advance, Max
  3. Hi all, I found those bivalves on Milnerton beach (Cape Town, South Africa). The beach is known to have fossil shark teeth and whale bones, but I don't know if they have fossil seashells. They do have modern ones. Those shells, because of many different features, do make me think that they are fossil. Anyways, I'm interested in 2, if not 3 things: • Species • Fossil or modern • (if fossil) how old If this species is (locally) extinct, then I think I can quite confidently put them down as fossil, but otherwise I'm not sure. The things that make me think that they are fossil are: • they are very thick • they are dull • they feel very hard (a lot like stone) Those features are applicable with shells found on the Zandmotor (NL), to see if they are modern or fossil; whether they are applicable in Cape Town I have no clue. Thanks in advance, Max (PS to mods: this may seem like a duplicate copy of a previous topic I posted, but this one is for different fossils; the text applies to both cases)
  4. This appears to be a section of the largest brachiopod or bivalve that I have seen here so far. The ridges are near parallel in each direction and there is a very slight arc to the surface suggesting (to me) a relatively large specimen. I did not see it in the link referenced earlier. Does anyone recognize this one ? The next post has a stranger in it as well. Almost looks like the hinge of a brachiopod, but not sure. Thanks again. Here is the other ...................
  5. From the album Haute Normandie - may 2017

    Indet. Bivalve from Saint-Jouin de Bruneval, Normandy - Cretaceous - Cenomanian
  6. MThese 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 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 October 22, 2016. Phylum Mollusca Class Bivalvia Ordovician Bivalves Babin, C. (2000). Ordovician to Devonian diversification of the Bivalvia. American Malacological Bulletin, Vol.15(2). Babin, C. and J-C Gutierrez-Marco (1991). Middle Ordovician Bivalves from Spain and Their Phyletic and Palaeogeographic Significance. Palaeontology, Vol.34, Part 1. Bradshaw, M.A. (1970). The Dentition and Musculature of Some Middle Ordovician (Llandeilo) Bivalves from Finistere, France. Palaeontology, Vol.13, Part 4. Carter, R.M. (1971). Revision of Arenig Bivalvia from Ramsey Island, Pembrokeshire. Palaeontology, Vol.14, Part 2. Kříž, J. and M. Steinová (2009). Uppermost Ordovician bivalves from the Prague Basin (Hirnantian, Perunica, Bohemia). Bulletin of Geosciences, 84(3). McAlester, A.L. (1965). Systematics, Affinities and Life Habits of Babinka, A Transitional Ordovician Lucinoid Bivalve. Palaeontology, Vol.8, Part 2. Novack-Gottshall, P.M. and A.I. Miller (2003). Comparative Taxonomic Richness and Abundance of Late Ordovician Gastropods and Bivalves in Mollusc-rich Strata of the Cincinnati Arch. Palaios, V.18. Pojeta, J. (1971). Review of Ordovician Pelecypods. U.S. Geological Survey Professional Paper 695. Polechová, M. (2016). The bivalve fauna from the Fezouata Formation (Lower Ordovician) of Morocco and its significance for palaeobiogeography, palaeoecology and early diversification of bivalves. Palaeogeography, Palaeoclimatology, Palaeoecology, 460. Polechová, M. (2015). The youngest representatives of the genus Ribeiria Sharpe, 1853 from the late Katian of the Prague Basin (Bohemia). Estonian Journal of Earth Sciences, 64(1). Soot-Ryen, H. (1969). A New Species of Babinka (Bivalvia) from the Lower Ordovician of Oland, Sweden. Palaeontology, Vol.12, Part 2. Steinová, M. (2012). Probable ancestral type of actinodont hinge in the Ordovician bivalve Pseudocyrtodonta Pfab, 1934. Bulletin of Geosciences, 87(2). Toni, R.T. (1975). Upper Ordovician Bivalves from the Oslo Region, Norway. Norsk Geologisk Tidsskrift, Vol.55. Tunnicliff, S.P. (1987). Caradocian Bivalve Molluscs from Wales. Palaeontology, Vol.30, Part 4. Tunnicliff, S.P. (1982). A Revision of Late Ordovician Bivalves from Pomeroy, Co. Tyrone, Ireland. Palaeontology, Vol.25, Part 1. Silurian Bivalves Babin, C. (2000). Ordovician to Devonian diversification of the Bivalvia. American Malacological Bulletin, Vol.15(2). Boyce, W.D., J.S. Ash and W.L. Dickson (1993). The Significance of a New Bivalve Fauna from the Gander Map Area (NTS 2D/15) and a Review of Silurian Bivalve-Bearing Faunas in Central Newfoundland. Current Research (1993) Newfoundland Department of Mines and Energy, Geological Survey Branch, Report 93-1. Kříž, J. (2011). Silurian Tetinka Barrande, 1881 (Bivalvia, Spanilidae) from Bohemia (Prague Basin) and Germany (Elbersreuth, Frankenwald). Bulletin of Geosciences, 86(1). Kříž, J. (2010). Silurian Spanila Barrande, 1881 (Bivalvia, Spanilidae) from European peri-Gondwana (Bohemia, Germany, France and Austria). Bulletin of Geosciences, 85(3). Kříž, J. (2010). Silurian Kenzieana Liljedahl, 1989 (Bivalvia, Spanilidae) from Bohemia, Gotland and Sardinia. Bulletin of Geosciences, 85(1). Kříž, J. (2008). Algerina gen.nov. (Bivalvia, Nepiomorphia) from the Silurian of the North Gondwana margin (Algeria), peri-Gondwanan Europe (France, Italy), Perunica (Prague Basin, Bohemia) and the Siberian Plate (Tajmyr Basin, Russia). Bulletin of Geosciences, Vol.83,1. Kříž, J. (2006). Bohemian type bivalves Praeostrea bohemica Barrande, 1881 and Slavinka plicata (Barrande, 1881) from the Silurian and earliest Devonian of the Carnic Alps (Austria). Bulletin of Geosciences, 81(2). Kříž, J., R.B. Blodgett and D.M. Rohr (2011). Silurian Bivalvia from Chichagof Island, Southeast Alaska (Alexander terrane). Bulletin of Geosciences, 86(2). Liljedahl, L. (1991). Contrasting Feeding Strategies in Bivalves from the Silurian of Gotland. Palaeontology, Vol.34, Part 1. Liljedahl, L. (1984). Janeia silurica, a link between Nuculoids and Solemyoids (Bivalvia). Palaeontology, Vol.27, Part 4. Ratter, V.A. and J.C.W. Cope (1998). New Silurian Neotaxodont Bivalves from South Wales and Their Phylogenetic Significance. Palaeontology, Vol.41, Part 5. Ulrich, E.O. (1894). Chapter VI. The Lower Silurian Lamellibranchiata of Minnesota. In: The Paleontology of Minnesota. (190 pages, 12.1 MB download) Devonian Bivalves Babin, C. (2000). Ordovician to Devonian diversification of the Bivalvia. American Malacological Bulletin, Vol.15(2). Hutchinson, T.W. and E.C. Stumm (1965). Upper Devonian and Lower Mississippian Pectinoid Pelecypods from Michigan, Ohio, Indiana, Iowa and Missouri.Contributions from the Museum of Paleontology - The University of Michigan, Vol.XX, Number 1. Kotzian, C.B. (2003). A New Devonian Modiolopsidae (Mollusca: Bivalvia) from the Ponta Grossa Formation, Paraná Basin, Brazil. Pesquisas em Geociências, 30(2). McAlester, A.L. (1962). Upper Devonian Pelecypods of the New York Chemung Stage. Peabody Museum of Natural History, Bulletin 16. Rode, A.L. (2004). Phylogenetic revision of Leptodesma (Leiopteria) (Devonian: Bivalvia). Peabody Museum of Natural History, Postilla Number 229. Carboniferous Bivalves Anelli, L.E., et al. (2009). Pennsylvanian Heteroconchia (Mollusca, Bivalvia) from the Piauí Formation, Parnaíba Basin, Brazil. Rev.bras.paleontol., 12(2). Bailey, J.B. (2011). Paleobiology, Paleoecology and Systematics of Solemyidae (Mollusca: Bivalvia: Protobranchia) from the Mazon Creek Lagerstätte, Pennsylvanian of Illinois. Bulletins of American Paleontology, Number 382. Brand, P.J. (1996). Taxonomy and Distribution of the Upper Carboniferous Non-Marine Bivalve Carbonicola aldamii. Palaeontology, Vol.39, Part 2. Hoare, R.D. (2007). Bivalve Mollusks from the Maxville Limestone (Mississippian) in Ohio. Ohio J. Sci., 107(4). Hoare, R.D., M.T. Sturgeon and E.A. Kindt (1979). Pennsylvanian Marine Bivalvia and Rostroconchia of Ohio. State of Ohio Division of Geological Survey, Bulletin 67. Permian Bivalves Permian Bivalves - Africa/Middle East Boyd, D.W. and N.D. Newell (1979). Permian Pelecypods from Tunisia. American Museum Novitates, Number 2686. Permian Bivalves - Asia/Malaysia/Pacific Islands Biakov, A.S. (2011). New Species of Inoceramus-like Bivalves of the Genus Aphanaia Koninck from the Lower Permian of Northeast Asia. Paleontological Journal, Vol.45, Number 1. Isozaki, Y. (2006). Guadalupian (Middle Permian) giant bivalve Alatoconchidae from a mid-Panthalassan paleo-atoll complex in Kyushu, Japan: a unique community associated with Tethyan fusilines and corals. Proc. Japan Acad., Series B, 82. Runnegar, B. and D. Gobbett (1975). Tachintongia Gen.Nov., A Bizarre Permian Myalinid Bivalve from West Malaysia and Japan. Palaeontology, Vol.18, Part 2. Permian Bivalves - Australia/New Zealand Newell, N.D. (1956). Primitive Desmodont Pelecypods of the Australian Permian. American Museum Novitates, Number 1799. Runnegar, B. (1968). Preserved Ligaments in Australian Permian Bivalves. Palaeontology, Vol.11, Part 1. Waterhouse, J.B. (1965). Palaeotaxodont Bivalves from the Permian of New Zealand. Palaeontology, Vol.7, Part 4. Waterhouse, J.B. (1963). New Zealand Species of the Permian Bivalve Atomodesma Beyrich. Palaeontology, Vol.6, Part 4. Permian Bivalves - North America Boyd, D.W. and N.D. Newell (2001). Silicified Leptodesma (Bivalvia; Pteriomorphia)from the Texas Permian. American Museum Novitates, Number 3347. McRoberts, C.A. and N.D. Newell (2005). Marine Myalinidae (Bivalvia: Pterioida) from the Permian of West Texas. American Museum Novitates, Number 3469. McRoberts, C.A. and N.D. Newell (2001). A New Permian Myalinid Genus, Elversella, of West Texas. American Museum Novitates, Number 3311. McRoberts, C.A. and N.D. Newell (1997). A New Transitional Myalinid Bivalve from the Lower Permian of West Texas. Palaeontology, Vol.40, Part 2. Newell, N.D. (1999). A New Limoid Bivalve from the Texas Middle Permian. American Museum Novitates, Number 3264. Newell, N.D. and K.W. Ciriacks (1962). A New Bivalve from the Permian of the Western United States. American Museum Novitates, Number 2121. General Permian Bivalves Boyd, D.W. and N.D. Newell (1968). Hinge Grade in the Evolution of Crassatellacean Bivalves as Revealed by Permian Genera. American Museum Novitates, Number 2328. Browne, I.A. and N.D. Newell (1966). The Genus Aphanaia Koninck, 1877, Permian Representative of the Inoceramidae. American Museum Novitates, Number 2252. Isozaki, Y. and D. Aljinović (2009). End-Guadalupian extinction of the Permian gigantic bivalve Alatoconchidae: End of gigantism in tropical seas by cooling. Palaeogeography, Palaeoclimatology, Palaeoecology, 284. Newell, N.D. and D.W. Boyd (1995). Pectinoid Bivalves of the Permian - Triassic Crisis. Bulletin of the American Museum of Natural History, Number 227. (36 MB download) Newell, N.D. and D.W. Boyd (1985). Permian Scallops of the Pectinacean Family Streblochondriidae. American Museum Novitates, Number 2831. Yancey, T.E. and D.W. Boyd (1983). Revision of the Alatoconchidae: A Remarkable Family of Permian Bivalves. Palaeontology, Vol.26, Part 3. Triassic Bivalves Boyd, D.W. and N.D. Newell (2002). A New Pterioid Bivalve from the Early Triassic of Utah. American Museum Novitates, Number 3375. Boyd, D.W. and N.D. Newell (1997). A Reappraisal of Trigoniacian Families (Bivalvia) and a Description of Two New Early Triassic Species. American Museum Novitates, Number 3216. Cox, L.R. (1963). The Rhaetic-Hettangian Bivalve Genus Pteromya Moore. Palaeontology, Vol.6, Part 3. Cox, L.R. (1960). The Preservation of Moulds of the Intestine in Fossil Nuculana (Lamellibranchia) from the Lias of England. Palaeontology, Vol.2, Part 2. Hautmann, M. (2001). Taxonomy and Phylogeny of Cementing Triassic Bivalves (Families Prospondylidae, Plicatulidae, Dimyidae, and Ostreidae). Palaeontology, Vol.44, Part 2. Hautmann, M. and A. Nutzel (2005). First Record of a Heterodont Bivalve (Mollusca) from the Early Triassic: Palaeoecological Significance and Implications for the 'Lazarus' Problem. Palaeontology, Vol.48, Part 6. Hopkin, E.K. and C.A. McRoberts (2005). A New Middle Triassic Flat Clam (Pterioida: Halobiidae) from the Middle Anisian of North-Central Nevada, USA. J.Paleont., 79(4). McRoberts, C.A. (2010). Biochronology of Triassic bivalves. In: The Triassic Timescale, Lucas, S.G. (ed.). The Geological Society of London Special Publications. McRoberts, C.A. (2001). Triassic bivalves and the initial marine Mesozoic revolution: A role for predators? Geology, Vol.29, Number 4. McRoberts, C.A. (2000). A Primitive Halobia (Bivalvia: Halobioidea) from the Triassic of Northeast British Columbia. J.Paleont., 74(4). McRoberts, C.A. and C.R. Newton (1995). Selective extinction among end-Triassic European bivalves. Geology, Vol.23, Number 2. McRoberts, C.A., L. Krystyn and A. Shea (2008). Rhaetian (Late Triassic) Monotis (Bivalvia: Pectinoida) from the Eastern Northern Calcareous Alps (Austria) and the End-Norian Crisis in Pelagic Faunas. Palaeontology, Vol.51, Part 3. Silberling, N.J., J.A. Grant-Mackie and K.M. Nichols (1997). The Late Triassic Bivalve Monotis in Accreted Terranes of Alaska. U.S. Geological Survey Bulletin 2151. Simpson, C.T. (1895). Description of Four New Triassic Unios from the Staked Plains of Texas. Proceedings of the United States National Museum, Vol.XVIII, Number 1072. Yancy, T.E., et al. (2005). Biogeography of the Late Triassic wallowaconchid megalodontoid bivalves. Lethaia, Vol.38. Yin, J. and C.A. McRoberts (2006). Latest Triassic - Earliest Jurassic Bivalves of the Germig Formation from Lanogla (Tibet, China). J.Paleont., 80(1). Jurassic Bivalves Jurassic Bivalves - Antarctica Crame, J.A. (1996). A New Oxytomid Bivalve from the Upper Jurassic-Lower Cretaceous of Antarctica. Palaeontology, Vol.39, Part 3. Crame, J.A. (1982). Late Jurassic Inoceramid Bivalves from the Antarctic Peninsula and their Stratigraphic Use. Palaeontology, Vol.25, part 3. Thomson, M.R.A. and L.E. Willey (1972). Upper Jurassic and Lower Cretaceous Inoceramus (Bivalvia) from South-East Alexander Island. Br.Antarct.Surv.Bull., Number 29. Jurassic Bivalves - Europe (including Greenland and Siberia) Barbu, V. and I. Lazar (2004). Statistical Analysis of Middle Jurassic Bivalve Assemblages from Romania: A Preliminary Report with Paleoecological Significance. Acta Palaeontologica Romaniae, Vol.4. Duff, K.L. (1978). Bivalvia from the English Lower Oxford Clay (Middle Jurassic). Palaeontographical Society Monographs, Vol.132, Publication Number 553. (Thanks to abyssunder for locating this one!) Johnson, A.L.A. and C.D. Lennon (1990). Evolution of Gryphaeate Oysters in the Mid-Jurassic of Western Europe. Palaeontology, Vol.33, Part 2. Lazar, I., V. Barbu and M.E. Popa (2004). Contributions to the Middle Jurassic of the Anina Area - The Bivalve Fauna (Part 1). Acta Palaeontologica Romaniae, Vol.4. Machalski, M. (1998). Oyster life positions and shell beds from the Upper Jurassic of Poland. Acta Palaeontologica Polonica, 43(4). Pugaczewska, H. (1986). Bivalvia of the Polish Middle Jurassic and Remarks on Their Paleoecology. Acta Palaeontologica Polonica, 31(1-2). Pugaczewska, H. (1971). Aalenian Gryphaeinae from the Pieniny Klippen Belt of Poland. Acta Palaeontologica Polonica, Vol.XVI, Number 4. Pugaczewska, H. (1968). Some Jurassic Species of Plicatula (Pelecypoda) of Poland. Acta Palaeontologica Polonica, Vol.XIII, Number 2. Radulovic, B.V., V.J. Radulovic and D.A. Ruban (2017). Bivalves from the tectonic units of eastern Serbia in the context of the Pliensbachian (Early Jurassic) palaeobiogeography of Europe. Palaeogeography, Palaeoclimatology, Palaeoecology, 466. Schneider, S. (2009). A multidisciplinary study of Jurassic bivalves from a semi-enclosed basin - Examples of adaptation and speciation and their stratigraphic and taphonomic background (Lusitanian Basin, central Portugal). Ph.D. Dissertation - Ludwig-Maximilians-Universitat, Munchen. Scholz, A., G. Schweigert, and G. Dietl (2008). Bivalves from the Nusplingen Lithographic Limestone (Upper Jurassic, Southern Germany). Palaeodiversity, 1. Surlyk, F. and V.A. Zakharov (1982). Buchiid Bivalves from the Upper Jurassic and Lower Cretaceous of East Greenland. Palaeontology, Vol.25, Part 4. Jurassic Bivalves - North America Aberhan, M. and H. Muster (1997). Palaeobiology of Early Jurassic Bakevelliid Bivalves from Western Canada. Palaeontology, Vol.40, Part 3. Jurassic Bivalves - South America/Central America/Caribbean Alencaster, G., et al. (2009). First record of the genus Trichites (Mollusca, Bivalvia) from the Upper Jurassic (Kimmeridgian) of Santiago Coatepec, Puebla, Mexico. Revista Mexicana de Ciencias Geologicas, Vol.26, Number 3. Pugaczewska, H. (1978). Jurassic Pelecypods from Cuba. Acta Palaeontologica Polonica, 23(2). Rubilar, A. (2005). Heterochrony in Middle Jurassic species of Gryphaea (Ostreoidea, Gryphaeidae) from southern South America. Geologica Acta, Vol.3, Number 2. General Jurassic Bivalves Fursich, F.T. and J.A. Palmer (1982). The First True Anomiid Bivalve? Palaeontology, Vol.25, Part 4. Jefferies, R.P.S. and P. Minton (1965). The Mode of Life of Two Jurassic Species of 'Posidonia' (Bivalvia). Palaeontology, Vol.8, Part 1. Palmer, C.P. (1974). A New Genus of Jurassic Bivalve Mollusc Ancestral to Globocardium. Palaeontology, Vol.17, Part 1. Ros-Franch, S., et al. (2015). Parainoceramya n.gen. for Parainoceramus Cox, 1954 (ex Voronetz, 1936) partim (Bivalvia, Jurassic). Journal of Paleontology, 89(1). Cretaceous Bivalves Cretaceous Bivalves - Africa/Middle East Dhondt, A.V., et al. (1999). Cretaceous oysters from North Africa: origin and distribution. Bull.Soc.geol. France, Vol.170, Number 1. Lopez, G., et al. (2004). Lower Maastrichtian inoceramids from Nigeria. Ann.Naturhist.Mus. Wien, 106A. Perrilliat, M.deC., F. Ahmad, and F.J. Vega (1973). Upper Cretaceous (Cenomanian-Turonian) bivalves from northern Jordan, Middle East. Revista Mexicana de Ciencias Geologicas, Vol.23, Number 1. Skelton, P.W. and V.P. Wright (1987). A Caribbean Rudist Bivalve in Oman: Island-Hopping Across the Pacific in the Late Cretaceous. Palaeontology, Vol.30, Part 3. Zakhera, M.S. (2010). Distribution and Abundance of Rudist Bivalves in the Cretaceous Platform Sequences in Egypt: Time and Space. Turkish Journal of Earth Sciences, Vol.19. Cretaceous Bivalves - Asia/Malaysia/Pacific Islands Amano, K., R.G. Jenkins and Y. Hikida (2007). A New Gigantic Nucinella (Bivalvia, Solemmyoida) from the Cretaceous Cold-seep Deposit in Hokkaido, Northern Japan. The Veliger, 49(2). Komatsu, T., et al. (2008). Habitats of Bivalves in the Lower-Cretaceous Aptian Tanohata and Aptian to Albian Hiraiga Formations, Iwate Prefecture, Northeastern Japan. In: Origin and Evolution of Natural Diversity. Okada, H., et al. (eds.), Proceedings of International Symposium, Sapporo. Kumagae, T., H. Maeda and T. Komatsu (2011). Paleoecology of Inoceramus amakusensis Nagao et Matsumoto, 1940 (Bivalvia) in a Late Cretaceous shallow clastic sea: the Himenoura Group , Kyushu, Japan. Cretaceous Research. Matsumoto, T. and M. Noda (1985). A New Inoceramid (Bivalvia) Species from the Upper Campanian (Cretaceous) of Hokkaido. Proc. Japan Acad., Series B, Vol.61, Number 1. Matsumoto, T. and M. Noda (1983). Restudy of Inoceramus incertus Jimbo with Special Reference to its Biostratigraphic Implications. Proc. Japan Acad., Series B, Vol.59. Matsumoto, T. and R. Sugiyama (1985). A New Inoceramid (Bivalvia) Species from the Upper Cretaceous of Northeast Japan. Proc. Japan Acad., Series B, Vol.61, Number 3. Sha, J., et al. (2006). Some Lower Cretaceous nonmarine bivalves from fluvio-lacustrine deposits bearing dinosaur fossils in Mongolia and northeast China. Cretaceous Research, 27. Tashiro, M. and T. Kozai (1986). Bivalve fossils from the type Monobegawa Group (Part II). Res.Rep. Kochi Univ., Vol.35. Tumpeesuwan, S., Y. Sato and S. Nakhapadungrat (2010). A New Species of Pseudohyria (Matsumotoina) (Bivalvia: Trigonioidoidea) from the Early Cretaceous Sao Khua Formation, Khorat Group, Northeastern Thailand. Tropical Natural History, 10(1). Cretaceous Bivalves - Australia/New Zealand Crampton, J.S. (1990). A New Species of Late Cretaceous Wood-Boring Bivalve from New Zealand. Palaeontology, Vol.33, Part 4. Darragh, T.A. and G.W. Kendrick (1991). Maastrichtian Bivalvia (excluding Inoceramidae) from the Miria Formation, Carnarvon Basin, north western Australia. Records of the Western Australian Museum, Supplement Number 36. Cretaceous Bivalves - Europe (including Greenland and Siberia) Barker, M.J., M.C. Munt and J.D. Radley (1997). The First Recorded Trigonioidoidean Bivalve from Europe. Palaeontology, Vol.40, Part 4. Callapez, P.M., et al. (2015). The Tethyan oyster Pycnodonte (Costeina) costei (Coquand, 1869) in the Coniacian (Upper Cretaceous) of the Iberian Basin (Spain): Taxonomic, palaeoecological and palaeobiogeographical implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 435. Damian, R. and I. Lazar (2005). The Stratigraphic Position of the Late Cretaceous Inoceramids from the Olanesti-Cheia Basin (Southern Carpathians). Acta Palaeontologica Romaniae, Vol.5. Dochev, D. (2006). New biostratigraphic data based on inoceramid bivalves from the interval Upper Turonian-Coniacian in Breznik, West Srednogorie Mountains, Bulgaria. Geosciences 2006. Jurkowska, A. (2016). Inoceramid stratigraphy and depositional architecture of the Campanian and Maastrichtian of the Miechow Synclinorium (southern Poland). Acta Geologica Polonica, Vol.66, Number 1. Malchus, N., A.V. Dhondt and K.-A. Troger (1994). Upper Cretaceous bivalves from the Glauconie de Lonzee near Gembloux (SE Belgium). Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique, Sciences De La Terre, 64. Pugaczewska, H. (1977). The Upper Cretaceous Ostreidae from the Middle Vistula Region (Poland). Acta Palaeontologica Polonica, Vol.22, Number 2. Pugaczewska, H. (1975). Neocomian Oysters from Central Poland. Acta Palaeontologica Polonica, Vol.XX, Number 1. Robin, N., et al. (2016). Bivalves on mecochirid lobsters from the Aptian of the Isle of Wight: Snapshot on an Early Cretaceous palaeosymbiosis. Palaeogeography, Palaeoclimatology, Palaeoecology, 453. Speden, I.G. (1970). Generic Status of the Inoceramus? tegulatus Species Group (Bivalvia) of the Latest Cretaceous of North America and Europe. Peabody Museum of Natural History, Postilla Number 145. Steuber, T. (1999). Cretaceous Rudists of Boeotia, Central Greece. Special Papers in Palaeontology, Number 61. Troger, K.-A. and H. Summesberger (1994). Coniacian and Santonian inoceramid bivalves from the Gosau-Group (Cretaceous, Austria) and their biostratigraphic and palaeobiogeographic significance. Ann. Naturhist. Mus. Wien, 96A. Vicens, E., et al. (2004). Rudist Biostratigraphy in the Campanian-Maastrichtian of the south-central Pyrenees, Spain. Cour.Forsch.-Inst. Senckenberg, 247. Walaszczyk, I. (2004). Inoceramids and inoceramid biostratigraphy of the Upper Campanian to basal Maastrichtian of the Middle Vistula River section, central Poland. Acta Geologica Polonica, Vol. 54, Number 1. Woods, H. (1904). A Monograph of the Cretaceous Lamellibranchia of England. Vol.II. Part I. - Limidae. Palaeontographical Society London, Vol.58, Number 273. Cretaceous Bivalves - North America Bennington, J.B. Shell color and predation in the Cretaceous oyster Pycnodonte convexa from New Jersey. Bose, E. (1919). On a New Exogyra from the Del Rio Clay and Some Observations on the Evolution of Exogyra in the Texas Cretaceous. University of Texas Bulletin, Number 1902. Feldmann, R.M. and T.W. Kammer (1976). Crassatellina hollandi n.sp. (Bivalvia: Astartidae) from the Fox Hills Formation (Maastrichtian, Cretaceous) of North Dakota and South Dakota. Journal of Paleontology, Vol.50, Number 3. Hill, R.T. and T.W. Vaughan (1898). Lower Cretaceous Gryphaeas of the Texas Region. Bulletin of the United States Geological Survey, Number 151. Hook, S.C. (2011). The Late Cretaceous oyster Cameleolopha bellaplicata (Shumard 1860), guide to middle Turonian strata in New Mexico. New Mexico Geology, Vol.33, Number 3. Hook, S.C. (2010). Flemingostrea elegans, n.sp., guide fossil to marine, lower Coniacian (Upper Cretaceous) strata of central New Mexico. New Mexico Geology, Vol.32, Number 2. Jones, D.L. and G. Gryc (1960). Upper Cretaceous Pelecypods of the Genus Inoceramus from Northern Alaska. U.S. Geological Survey Professional Paper 334-E. Kirby, M.X. and L.R. Saul (1995). The Tethyan Bivalve Roudairia from the Upper Cretaceous of California. Palaeontology, Vol.38, Part 1. Kniker, H.T. (1918). Comanchean and Cretaceous Pectinidae of Texas. University of Texas Bulletin, Number 1817. Kues, B.S. (1994). An anomalously large Exogyra from the Paguate Sandstone Tongue of the Dakota Sandstone (Cretaceous, middle Cenomanian). New Mexico Geology. McClure, M. and A.J. Bohonak (1995). Non-selectivity in extinction of bivalves in the Late Cretaceous of the Atlantic and Gulf Coastal Plain of North America. J.Evol.Biol., 8. Mitchell, S.F. (2013). A new rudist bivalve Curtocaprina clabaughhikinsorum gen. et sp.nov. from the Middle Albian of Texas and its bearing on the origin of the Ichthyosarcolitidae Douvillé. Caribbean Journal of Earth Science, 45. Rhenberg, E.C. (2007). Biotic Interactions of Bivalves from the Late Cretaceous coon Creek Type Section of McNairy County, Tennessee. Masters Thesis - Kent State University. Saul, L.R. and W.P. Popenoe (1992). Pacific Slope Cretaceous Bivalves of the Genus Calva. Contributions in Science, Natural History Museum of Los Angeles County, Number 433. Speden, I.G. (1970). The Type Fox Hills Formation, Cretaceous (Maastrichtian), South Dakota. Part 2. Systematics of the Bivalvia. Peabody Museum of Natural History - Yale University, Bulletin 33. Speden, I.G. (1970). Generic Status of the Inoceramus? tegulatus Species Group (Bivalvia) of the Latest Cretaceous of North America and Europe. Peabody Museum of Natural History, Postilla Number 145. Squires, R.L. and L.R. Saul (2006). New Late Cretaceous Mytilid and Tellinoidean Bivalves from California. The Veliger, 48(3). Squires, R.L. and L.R. Saul (2006). Cretaceous Acila (Truncacila) (Bivalvia: Nuculidae) from the Pacific Slope of North America. The Veliger, 48(2). Stephenson, L.W. (1929). Two New Mollusks of the Genera Ostrea and Exogyra from the Austin Chalk, Texas. Number 2815-Proceedings U.S. National Museum, Vol.76, Article 18. Stephenson, L.W. (1914). Cretaceous Deposits of the Eastern Gulf Region and Species of Exogyra from the Eastern Gulf Region and the Carolinas. U.S. Geological Survey, Professional Paper 81. Walaszczyk, I. and W.A. Cobban (2006). Palaeontology and biostratigraphy of the Middle-Upper Coniacian and Santonian inoceramids of the US Western Interior. Acta Geologica Polonica, Vol.56, Number 3. Walaszczyk, I. and W.A. Cobban (2000). Inoceramid faunas and biostratigraphy of the Upper Turonian-Lower Coniacian of the Western Interior of the United States. Special Papers in Palaeontology, Number 64. Yen, T-C. (1951). Some Lower Cretaceous Pelecypods from Pryor, Montana. American Museum Novitates, Number 1481. Cretaceous Bivalves - South America/Central America/Caribbean Alencaster, G. (1998). New Caprinid Rudist Genera Guzzyella and Muellerriedia (Bivalvia, Hippuritacea) from the Albian (Cretaceous) of Central Mexico. Revista Mexicana de Ciencias Geologicas, Vol.15, Number 1. Alencaster, G. and J. Aguilar-Perez (1995). Jalpania queretana, a New Rudist (Bivalvia-Hippuritacea) from the Mid-Cretaceous of Central Mexico. Revista Mexicana de Ciencias Geologicas, Vol.12, Number 2. Alencaster, G. and J. Pantoja-Alor (1995). New Early Aptian Rudists (Bivalvia-Hippuritacea) from the Huetamo Area in Southwestern Mexico. Revista Mexicana de Ciencias Geologicas, Vol.12, Number 2. Dhondt, A.V. and E. Jaillard (2005). Cretaceous bivalves from Equador and northern Peru. Journal of South American Earth Sciences, 19. Echevarria, J. (2014). Ontogeny and autecology of an Early Cretaceous trigoniide bivalve from Neuquen Basin, Argentina. Acta Palaeontologica Polonica, 59(2). Kellum, L.B. and K.A. Shubak (1961). New Exogyras from the Indidura Formation, Mexico. Papers of the Michigan Academy of Sciences, Arts and Letters, Vol.XLVI. Lopez, G. and F.A. Mourgues (2007). Aptian Inoceramids (Bivalvia) from the Pabellon Formation, Chanarcillo Basin (Chile). In: 4th European Meeting on the Palaeontology and Stratigraphy of Latin America. Diaz-Martinez, E. and I. Rabano (eds.). Oviedo, A., et al. (2007). Stratigraphical Distribution of the Hippuritid Rudists in the Upper Cretaceous of Central Mexico. In: 4th European Meeting on the Palaeontology and Stratigraphy of Latin America. Diaz-Martinez, E. and I. Rabano (Eds.). Seeling, J. and P. Bengtson (2003). The bivalve Pinna cretacea (Schlotheim, 1813) from the Cretaceous of Brazil. Acta Palaeontologica Polonica, 48(3). General Cretaceous Bivalves Carter, R.M. (1968). Functional Studies on the Cretaceous Oyster Arctostrea. Palaeontology, Vol.11, Part 3. Chinzei, K. (1986). Shell Structure, Growth, and Functional Morphology of an Elongate Cretaceous Oyster. Palaeontology, Vol.29, Part 1. Kauffman, E.G. (1972). Ptychodus Predation Upon a Cretaceous Inoceramus. Palaeontology, Vol.15, Part 3. Macleod, K.G., B.T. Huber, and P.D. Ward (1996). The biostratigraphy and paleobiogeography of Maastrichtian inoceramids. Geological Society of America, Special Paper 307. Marincovich, L. (1975). Morphology and Mode of Life of the Late Cretaceous Rudist, Coralliochama orcutti White (Mollusca: Bivalvia). Journal of Paleontology, Vol.45, Number 1. Sanders, D. (1998). Upper Cretaceous 'Rudist Formations'. Geol.Palaont.Mitt. Innsbruck, 23. Speden, I.G. (1967). Revision of Syncyclonema (Upper Cretaceous) and Comparison With Other Small Pectinid Bivalves and Entolium. Peabody Museum of Natural History Postilla, Number 110. Paleocene Bivalves Cvancara, A.M. (1970). Teredinid (Bivalvia) Pallets from the Palaeocene of North America. Palaeontology, Vol.13, Part 4. Machalski, M. (1988). Redescription of a Danian Oyster Pycnodonte simile (Pusch, 1837) from Poland. Acta Palaeontologica Polonica, 33(1). Eocene Bivalves Stenzel, H.B., E.K. Krause and J.T. Twining (1957). Pelecypoda from the Type Locality of the Stone City Beds (Middle Eocene) of Texas. Bureau of Economic Geology, Publication Number 5704. (270 pages) Wood, S.V. (1861). A Monograph of the Eocene Bivalves of England. The Palaeontographical Society, London. (340 pages, 19 MB download) Wozny, E. (1977). Pelecypods from the Upper Eocene of East Poland. Acta Palaeontologica Polonica, 22(1). Miocene Bivalves Allison, R.C. and W.O. Addicott (1976). The North Pacific Miocene Record of Mytilus (Plicatomytilus), a New Subgenus of Bivalvia. U.S. Geological Survey, Professional Paper 962. (Thanks to Nimravus for pointing me to this one!) Amano, K., et al. (2014). Fossil vesicomyid bivalves from Miocene hydrocarbon seep sites, North Island, New Zealand. Acta Palaeontologica Polonica, 59(2). El-Hedeny, M.M. (2005). Taphonomy and Paleoecology of the Middle Miocene oysters from Wadi Sudr, Gulf of Suez, Egypt. Revue de Paleobiologie, Geneve, 24(2). Glenn, L.C. (1904). The Pelecypoda of the Miocene of Maryland. Ph.D. Dissertation - Johns Hopkins University. (230 pages, 17.1 MB download). Hoffman, A. (1978). Growth Allometry in a Bivalve Anadara diluvii (Lamarck) from the Badenian (Miocene) Korytnica Clays, Poland. Acta Palaeontologica Polonica, 23(1). Lauriat-Rage, A., et al. (1997). The Bivalvia (Mollusca) from the Upper Miocene of the Sais Basin (Southern Rifian Corridor, Morocco). Palaeobiogeography and Palaeoecology. Rev.Soc.Geol. Espana, 12(1). Mahdi, A.H.I. (2007). Fossils Mollusca (Bivalve) from the Fatha Formation of Northern Iraq. Iraqi Bulletin of Geology and Mining, Vol.3, Number 1. Muller, P. and I. Magyar (1992). Continuous record of the evolution of lacustrine cardiid bivalves in the late Miocene Pannonian Lake. Acta Palaeontologica Polonica, 36(4). Schneider, S., O. Mandic and M. Harzhauser (2013). Preserved colour pattern in Polititapes tricuspis (Eichwald, 1829) (Bivalvia: Veneridae) from the Sarmatian holostratotype at Nexing (Lower Austria). N.Jb.Geol.Paläont.Abh., 268/2. Studencka, B. (1987). The Occurrence of the Genus Kelliella (Bivalvia, Kelliellidae) in Shallow-Water, Middle Miocene Deposits of Poland. Acta Palaeontologica Polonica, 32(1-2). Studencka, B. and M. Jasionowski (2011). Bivalves from the Middle Miocene reefs of Poland and Ukraine: A new approach to Badenian/Sarmatian boundary in the Paratethys. Acta Geologica Polonica, Vol.61, Number 1. Ward, L.W. and B.W. Blackwelder (1975). Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) from the Miocene and Pliocene of Eastern North America. United States Geological Survey, Professional Paper 861. Pliocene Bivalves Hayami, I. and I. Hosoda (1981). Fortipecten takahashi, a Reclining Pectinid from the Pliocene of North Japan. Palaeontology, Vol.31, Part 2. Ward, L.W. and B.W. Blackwelder (1975). Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) from the Miocene and Pliocene of Eastern North America. United States Geological Survey, Professional Paper 861. Pleistocene Bivalves Thomsen, P., J. Knudsen and E. Koskeridou (2009). Fossil panopeans (Bivalvia, Hiatellidae) from Rhodes, Greece. Steenstrupia, 30(2). General Bivalvia General Bivalvia - Asia/Malaysia/Pacific Islands Tashiro, M. and M. Otsuka (1980). Bivalve Fossils from the Uppermost Formation of the Upper Himenoura Subgroup in Amakusa-Shimojima Island, Kyushu (Part 1). Memoirs of the Faculty of Science, Kochi University, Series E Geology, Vol.1. General Bivalvia - Europe (including Greenland and Siberia) Hallam, A. (1968). Morphology, Palaeoecology and Evolution of the Genus Gryphaea in the British Lias. Phil.Trans.R.Soc. B, Vol.254, , Issue 792. MacNeil, F.S. (1967). Cenozoic Pectinids of Alaska, Iceland, and Other Northern Regions. U.S. Geological Survey, Professional Paper 553. Thomsen, E., J. Knudsen, and E. Koskeridou (2009). Fossil panopeans (Bivalvia, Hiatellidae) from Rhodes, Greece. Steenstrupia, 30(2). General Bivalvia - North America Arnold, R. (1906). The Tertiary and Quaternary Pectens of California. United States Geological Survey, Professional Paper 47. (284 pages, 17.3 MB download) MacNeil, F.S. (1967). Cenozoic Pectinids of Alaska, Iceland, and Other Northern Regions. U.S. Geological Survey, Professional Paper 553. Whitfield, R.P. (1902). Description of a New Form of Myalina from the Coal Measures of Texas. Bulletin of the American Museum of Natural History, Vol.XVI, Article IV. Woodring, W.P. (1926). American Tertiary Mollusca of the Genus Clementia. U.S. Geological Survey Professional Paper 147-C. General Bivalvia - South America/Central America/Caribbean Kellum, L.B. and K.A. Shubak (1961). New Exogyras from the Indidura Formation, Mexico. Papers of the Michigan Academy of Science, Arts and Letters, Vol.XLVI. Rivadeneira, M.M. (2010). On the Completeness and Fidelity of the Quaternary Bivalve Record from the Temperate Pacific Coast of South America. Palaios, Vol.25. Rojas, R., M. Iturralde-Vinent and P.W. Skelton (1995). Stratigraphy, Composition and Age of Cuban Rudist-Bearing Deposits. Revista Mexicana de Ciencias Geologicas, Vol.12, Number 2. General Bivalvia Ackerly, S.C. (1992). The Structure of Ontogenetic Variation in the Shell of Pecten. Palaeontology, Vol.35, Part 4. Buenrostro, C.E.C. (2006). Bivalve Mollusc Paleoecology: Trophic and Environmental Reconstruction from Stable Isotopes, Sclerochronology and Shell Damage. Ph.D. Dissertation - The University of Arizona. Carter, J.G., et al. (2011). A Synoptical Classification of the Bivalvia (Mollusca). Paleontological Contributions Number 4, KU Paleontological Institute, The University of Kansas. Checa, A.G., et al. (2006). Further comments on the origin of oysters. Palaeogeography, Palaeoclimatology, Palaeoecology, 240. Cintra Buenrostro, C.E. (2006). Bivalve Mollusc Paleoecology: Trophic and Environmental Reconstruction from Stable Isotopes, Sclerochronology and Shell Damage. Ph.D. Dissertation - The University of Arizona. Cope, J.C.W. (1997). The Early Phylogeny of the Class Bivalvia. Palaeontology, Vol.40, Part 3. Crame, J.A. and S.R.A. Kelly (1995). Composition and Distribution of the Inoceramid Bivalve Genus Anopaea. Palaeontology, Vol.38. Part 1. Crampton, J.S. (1988). Comparative Taxonomy of the Bivalve Families Isognomonidae, Inoceramidae and Retroceramidae. Palaeontology, Vol.31, Part 4. Dickens, J.M. (1960). Characters and Relationships of the Mesozoic Pelecypod Pseudavicula. Palaeontology, Vol.3, Part 3. Hautmann, M. (2006). Shell morphology and phylogenetic origin of oysters. Palaeogeography, Palaeoclimatology, Palaeoecology, 240. Harper, E.M. (1997). The Molluscan Periostracum: An Important Constraint in Bivalve Evolution. Palaeontology, Vol.40, Part 1. Imlay, R.W. (1959). Succession and Speciation of the Pelecypod Aucella. U.S. Geological Survey, Professional Paper 314-G. (Thanks to Nimravus for finding this one!) Jenkins, R.G., et al. (2013). Worldwide distribution of the modiomorphid bivalve genus Caspiconcha in late Mesozoic hydrocarbon seeps. Acta Palaeontologica Polonica, 58(2). Kellum, L.B. (1964). Inoceramus cobbani, New Name for Inoceramus radiatus Kellum, (1962). Journal of Paleontology, Vol.38, Number 5. MacLeod, K.G. and K.A. Hoppe (1992). Evidence that inoceramid bivalves were benthic and harbored chemosynthetic symbionts. Geology, Vol.20. Molineux, A., et al. (2007). Rudist Taxonomy Using X-Ray Computed Tomography. Palaeontologia Electronica, Vol.10, Issue 3. Monari, S. (2009). Phylogeny and biogeography of pholadid bivalve Barnea (Anchomasa) with considerations on the phylogeny of Pholadoidea. Acta Palaeontologica Polonica, 54(2). Morton, B. (1970). The Evolution of the Heteromyarian Condition in the Dreissenacea (Bivalvia). Palaeontology, Vol.13, Number 4. Newell, N.D. (1965). Classification of the Bivalvia. American Museum Novitates, Number 2206. Stanley, S.M. (1977). Coadaptation in the Trigoniidae, a Remarkable Family of Burrowing Bivalves. Palaeontology, Vol.20, Part 4. Steele-Petrovic, H.M. (1979). The Physiological Differences Between Articulate Brachiopods and Filter-Feeding Bivalves as a Factor in the Evolution of Marine Level-Bottom Communities. Palaeontology, Vol.22, Part 1. Taylor, J.D. (1973). The Structural Evolution of the Bivalve Shell. Palaeontology, Vol.16, Part 3.
  7. Hi everyone, Here is an astarte seashell, but I'd like to put a definitive ID on it (Genus + species). It's from the Westerschelde, NL, and ages from the Pliocene. Any clues? Thanks in advance! Max
  8. Common species, can go up to 60mm.
  9. Discovered along the Choptank Formation near the surf as is.
  10. This bivalve is 10mm long and from the Lower Cretaceous of Cooke County Texas. It's probably from the Duck Creek Formation but may be from the Ft. Worth Formation. It may even be the Goodland. I'm sure I've seen them other places but I just now brought one home and need to give it a proper label. These formations would be of Albian Stage or Washita Group in Texas. It looks a little like some Ostrea sp. I've seen in some references but not exactly the same. Any help would be great.
  11. The wonderfully looking Tetrarhynchia tetraedra brachiopods from the Middle Lias, Marlstone UK. Would anyone have a suggestion please as to what the bivalve looking shell is?
  12. I have this Bathonian bivalve from the Upper Cornbrash, UK which I think is Radulopecten vagans. Any suggestions as to the passenger it is carrying.
  13. This was found in the spoils from dredging the C&D Canal in the 1980s. Recent removal of spoils sand for road construction in the area exposed previously- inaccessible layers of sand. Formerly known as Ostrea panda. It remains in the same Order. This species is not listed in the Delaware Geological Survey's bulletin about the fossils of the Canal. It is distinguished by its round shape. Pycnodontes are an extinct genus of oysters known as foam or honeycomb oysters.
  14. From the album New Jersey Cretaceous

  15. Hi all, Anyone know what species these bivalves are? They're from Contrisson, France, from which the fossils appear to be from the Albian stage. Thanks for the help, Max
  16. I went out last week on a nice day and walked through a nearby road cut. While there is never an abundance of fossils every once in a while one will weather out of the shale. This is a Devonian- Brailler Formation. There is some Pyritization and some layers have iron concretions that have fossils on the outside and spark and stink like sulfur when hit with an iron hammer! This fossil is about 3" long and about 2" thick. It shows no internal structure and appears to be a cast.
  17. Found in a creek bed in NNW San Antonio, TX. I find a lot of marine fossils there: nautiloids, exogyra ponderosas Thanks!
  18. Hey all, I need help identifying these. I don't have a good idea of what they are, so I could really use your guys' help identifying these. Thanks a lot!!!
  19. Hi all, I just need help on confirming this specimen. I think it is a composita (brachiopod) rather than a schizodus (bivalve). There is a depression on the shell's surface going down the middle, but it is hard to see. Thanks again! This was found in NE Kansas.
  20. Near Crosbyton, TX found what looks like a piece of chewed gum. I'm thinking the inner mold of a bivalve or maybe just an very interesting rock. Thought?
  21. Here a sampling of the clams I found at Fluvana last year. I believe the larger ones are referred to as Deer Hearts, correct? are there different and more specific varieties of them as that seems a very generic term?
  22. Found this on my farm on a pond bank. Looks like a bivalve shell, but it comes to a point on one end and I can't make out a central fissure. Any help is appreciated. Ste. Genevieve county, MO.
  23. A friend of mine told me last week that they'd started construction on a bypass around a small town in the Wutach area in the fall. They won't be really going at it until the springtime, but he visited the site last week and managed to find a couple of nice Hettangian ammonites on the scree pile, which was free of snow, since the temps are rising at the moment. So, since I was suffering from cabin fever, I figured I'd get out for some fresh air and give it a go. Well, there was lots of evidence of ammonites with a number of large body chamber pieces lying around, but it was obvious after a couple of hours of investigation, also directly at the exposure, that I had arrived quite a bit later than all the local collectors. I did however manage to find a well-preserved Plagiostoma gigantea, or giganteum (depending on which author you prefer) bivalve, which saved the day. I'll have to keep an eye on this site when they start working again anyway. Actually, it was just nice to get out a do some rummaging around.
  24. From the album Fossildude's Finds

    Actinopteria textilis a pteriomorphid bivalve. Also on the same matrix, ... an unknown orthocone cephalopod, and a trilobite pygidium from Phalangocephalus dentatus Lower Devonian Port Jervis/Glenerie Formation Tristates Group Trilobite Ridge Montague, NJ.

    © 2017 Tim Jones

  25. From the album @Max-fossils 's Zandmotor Finds

    A clam found on the Zandmotor. Species: Mactra plistoneerlandica (but it could be Spisula solida, I'm not sure). The whole beach is filled with those, and even complete ones are extremely common.