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Found 46 results

  1. I noticed the fossils of more 'modern' reptiles are not commonly shown/displayed (partly because I think they are fairly common in the U.S. and not viewed as too spectacular), so I thought we might do so here. I'd love to see your croc/alligator and turtle material, especially from various locations!
  2. I obtained this partial crocodile skull and jaw some time ago, and haven't done anything with it yet. It's from Morocco, and was sold as sarcosuchus, though I imagine it's actually dyrosaurus. No idea whether it's just one specimen, or a mixture of bits. The teeth are glued on. Several of the pieces are also so fragile that they basically crumble when touched. Is there a method I should be using to stabilise them? I know very little about crocs, but I would love to get this to some kind of displayable state. I can digitally sculpt and 3D print missing pieces later, but my main problem at this stage is actually understanding what I have. Many of the bits are - and I assume will remain - unknown bone fragments, but many are large and identifiable - with the right references and knowledge (which I don't yet posses). Is there any advice that anyone could offer which isn't "put it in a box and forget about it"? I appreciate that I must sound like an idiot to people that know their stuff - my specialism is ammonites, which I can prep to a very high standard, but the only vertebrates you find around here are ichthyosaurs. I don't exactly need my hand held, but a few pointers would be very much appreciated!
  3. Both items are from Miocene period. Is the top item a crocodile tooth? It is 1 1/4" long and about 3/8" wide on the bottom. The bottom item is 3/4" long and about 3/8" wide on the bottom. Thanks in advance.
  4. I went back to Purse today with my wife, you just have to love it when you play at the river in February and only have to wear a sweatshirt. We didn't find anything spectacular but my wife did find a Otodus frag that would have been absolutely spectacular had it been whole. The total haul, some nice glass today too. Otodus frag...this would have been a beast if it was whole! Pretty cool looking sand tiger. Croc tooth...found this sitting high and dry as I was walking fast to get to where I wanted to search at. I see you! Although it was warm today, there were some neat icicles hanging down.
  5. Hi all, I've this nice vertebra fossil from the Hell Creek Formation in Harding County, South Dakota. I'm pretty sure it is a Crocodillian vert but not sure of the species or genus. Also, is it possible to tell which part of the body this belonged to? Any suggestions are welcome and much appreciated! Cheers, Jojo
  6. A nice Lee Creek croc tooth.
  7. Hi Me and my brother are hoping that we've found a dinosaur. It was found in Lower Jurassic marine deposits in the UK. The age of the deposits are Hettangian and we think it's from the Psiloceras Planorbis zone, which is almost at the base of the Jurassic. I've posted a thread on the UK Fossil Forum here: The important picture so far is this one: It shows what I think is a line of tail verts, with some neurals broken of and some still buried under the matrix. At first I thought they might be plesiosaur phlanages but they were with some long bones that looked like land animal bones. I think the large flat bone that I have partly uncovered is the animal's pelvis. To give you an idea of scale, the verts are about an inch long. Land animals in this deposit are virtually unheard of. My hope is that it is a dinosaur, but a crocodile is another possibility. Again crocodiles from these deposits are unheard of, so that'd be great as well. If anyone has any thoughts then I'd really like to hear from them. I've spent most of the week on the internet researching this as I have virtually no knowledge of dinosaur anatomy. What I have found out is that if it is an animal, especially a dinosaur, then it is extremely rare. Thanks Nick
  8. 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 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 December 12, 2016. Superorder Crocodylomorpha - The Alligators, Crocodiles and Their Allies. Triassic Benton, M.J. and A.D. Walker (2002). Erpetosuchus, a crocodile-like basal archosaur from the Late Triassic of Elgin, Scotland. In: Archosaurian anatomy and palaeontology. Essays in memory of Alick D. Walker . Norman, D.B. and D.J. Gower (eds.), Zoological Journal of the Linnean Society, 136. Busbey, A.B. and C. Gow (1984). A New Protosuchian Crocodile from the Upper Triassic Elliot Formation of South Africa. Palaeont.afr., 25. Clark, J.M., H.-D. Sues and D.S. Berman (2000). A New Specimen of Hesperosuchus agilis from the Upper Triassic of New Mexico and the Interrelationships of Basal Crocodylomorph Archosaurs. Journal of Vertebrate Paleontology, 20(4). Colbert, E.H. (1952). A Pseudosuchian Reptile from Arizona.Bulletin of the American Museum of Natural History, Vol.99, Article 10. Crush, P.J. (1984). A Late Upper Triassic Sphenosuchid Crocodilian from Wales. Palaeontology, Vol.27, Part 1. Gauthier, J.A., et al. (2011). The Bipedal Stem Crocodilian Poposaurus gracilis: Inferring Function in Fossils and Innovation in Archosaur Locomotion. Bulletin of the Peabody Museum of Natural History, 50(1). Sues, H.-D., et al. (2003). A New Crocodylomorph from the Upper Triassic of North Carolina. Journal of Vertebrate Paleontology, 23(2). Jurassic Jurassic Crocodylomorphs - Africa/Middle East Hadri, M., et al. (2015). Crocodyliform footprints from "les couches rouges" of the Middle Jurassic of Msemrir, High Atlas, Morocco. Geogaceta, 58. Jurassic Crocodylomorphs - Asia/Malaysia/Pacific Islands Buffetaut, E. and R. Ingavat (1984). The Lower Jaw of Sunosuchus thailandicus, A Mesosuchian Crocodilian from the Jurassic of Thailand. Palaeontology, Vol.27, Part 1. Clark, J.M., et al. (2004). A Middle Jurassic 'sphenosuchian' from China and the origin of the crocodylian skull. Nature, Vol.430. Gao, Y. (2001). A new species of Hsisosuchus (Mesoeucrocodylia) from Dashanpu, Zigong Municipality, Sichuan Province. Vertebrata PalAsiatica, Vol.39, Number 3. Harris, J.D., et al. (2000). A new and unusual sphenosuchian (Archosauria: Crocodylomorpha) from the Lower Jurassic Lufeng Formation, People's Republic of China. N.Jb.Geol.Palaont. Abh., 215(1). Peng, G.-Z. and C.-K. Shu (2005). A New Species of Hsisosuchus from the Late Jurassic of Zigong, Sichuan, China. Vertebrata PalAsiatica, 43(4). Schellhorn, R., et al. (2009). Late Jurassic Sunosuchus (Crocodylomorpha, Neosuchia) from the Qigu Formation in the Junggar Basin (Xinjiang, China). Fossil Record, 12(1). Young, C.-C. (1961). On a New Crocodile from Chuhsien, E. Shantung. Vertebrata PalAsiatica, 1961(1). Jurassic Crocodylomorphs - Europe (including Greenland) Adams-Tresman, S.M. (1987). The Callovian (Middle Jurassic) Teleosaurid Marine Crocodiles from Central England. Palaeontology, Vol.30, Part 1. Cau, A. and F. Fanti (2011). The oldest known metriorhynchid crocodylian from the Middle Jurassic of North-eastern Italy: Neptunidraco ammoniticus gen. et sp.nov. Gondwana Research, 19. Grange, D.R. and M.J. Benton (1996). Kimmeridgian Metriorhynchid Crocodiles from England. Palaeontology, Vol.39, Part 2. Karl, H.-V., et al. (2008). First Remains of the Head of Steneosaurus (Crocodylomorpha: Teleosauridae) from the Late Jurassic of Oker (Lower Saxony, Germany). Studia Geologica Salmanticensia, 44(2). Karl, H.-V., et al. (2006). The Late Jurassic crocodiles of the Langenberg near Oker, Lower Saxony (Germany), and description of related materials (with remarks on the history of quarrying the "Langenberg Limestone" and "Obernkirchen Sandstone"). Clausthaler Geowissenschaften, 5. Kuzmin, I.T., et al. (2013). Goniopholidid Crocodylomorph from the Middle Jurassic Berezovsk Quarry Locality (Western Siberia, Russia). Proceedings of the Zoological Institute RAS, Vol.317, Number 4. Mook, C.C. (1942). Anglosuchus, a New Genus of Teleosauroid Crocodilians. American Museum Novitates, Number 1217. Russo, J., et al. (2014). Crocodylomorph eggs and eggshells from the Lourinhã Fm. (Upper Jurassic), Portugal. Comunicaҫões Geológicas, 101, Especial 1. Schwarz-Wings, D., et al. (2011). A new partial skeleton of Alligatorellus (Crocodyliformes) associated with echinoids from the Late Jurassic (Tithonian) lithographic limestone of Kelheim, S-Germany. Fossil Record, 14(2). Tennant, J.P. and P.D. Mannion (2014). Revision of the Late Jurassic crocodyliform Alligatorellus, and evidence for allopatric speciation driving high diversity in western European atoposaurids. PeerJ, 2:e599. Wilkinson, L.E., M.T. Young and M.J. Benton (2008). A New Metriorhynchid Crocodilian (Mesoeucrocodylia: Thalattosucha) from the Kimmeridgian (Upper Jurassic) of Wiltshire, UK. Palaeontology, Vol.51, Part 6. Young, M.T., L. Steel and H. Middleton (2013). Evidence of the metriorhynchid crocodylomorph genus Geosaurus in the Lower Kimmeridge Clay Formation (Late Jurassic) of England. Historical Biology, 2013. Young, M.T., et al. (2012). The Cranial Osteology and Feeding Ecology of the Metriorhynchid Crocodylomorph Genera Dakosaurus and Plesiosuchus from the Late Jurassic of Europe. PLoS ONE, 7(9). Jurassic Crocodylomorphs - North America Allen, E.R. (2012). Analysis of North American Goniopholidid Crocodyliforms in a Phylogenetic Context. Masters Thesis - The University of Iowa. Gohlich, U.B., et al. (2005). The systematic position of the Late Jurassic alleged dinosaur Macelognathus (Crocodylomorpha: Sphenosuchia). Can.J. Earth Sci., 42. Mook, C.C. (1942). Skull Characters of Amphicotylus lucasii Cope. American Museum Novitates, Number 1165. Mook, C.C. (1933). A Crocodilian Skeleton from the Morrison Formation at Canyon City, Colorado. American Museum Novitates, Number 671. Mook, C.C. (1933). Skull Characters of Teleorhinus browni Osborn. American Museum Novitates, Number 602. Tykoski, R.S., et al. (2002). Calsoyasuchus valliceps, A New Crocodyliform from the Early Jurassic Kayenta Formation of Arizona. Journal of Vertebrate Paleontology, 22(3). Jurassic Crocodylomorphs - South America/Central America/Caribbean Fortier, D., D. Perea and C. Schultz (2011). Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay. Zoological Journal of the Linnean Society, 163. Gasparini, Z., D. Pol and L.A. Spalletti (2006). An Unusual Marine Crocodyliform from the Jurassic-Cretaceous Boundary of Patagonia. Science, Vol.311. Montefeltro, F.C., et al. (2013). A new neosuchian with Asian affinities from the Jurassic of northeastern Brazil. Naturwissenschaften, DOI 10.1007/s00114-013-1083-9. Pol, D., et al. (2013). A new fossil from the Jurassic of Patagonia reveals the early basicranial evolution and the origins of Crocodyliformes. Biol.Rev.(2013). General Jurassic Crocodylomorphs Clark, J.M. and H.-D. Sues (2002). Two new basal crocodylomorph archosaurs from the Lower Jurassic and the monophyly of the Sphenosuchia. In: Archosaurian anatomy and palaeontology. Essays in memory of Alick D. Walker. Norman, D.B. and D.J. Gower (eds.), Zoological Journal of the Linnean Society, 136. Tennant, J.P., P.D. Mannion and P. Upchurch (2016). Environmental drivers of crocodyliform extinction across the Jurassic/Cretaceous transition. Proc.R.Soc. B, 283. Cretaceous Cretaceous Crocodylomorphs - Africa/Middle East Buffetaut, E. and P. Taquet (1977). The Giant Crocodilian Sarcosuchus in the Early Cretaceous of Brazil and Niger. Palaeontology, Vol.20, Part 1. Buscalioni, A.D., et al. (2004). Late Cretaceous neosuchian crocodiles from the Sultanate of Oman. Cretaceous Research, 25. de Lapparent de Broin, F. (2002). Elosuchus, a new genus of crocodile from the Lower Cretaceous of the North of Africa. C.R. Palevol, 1(5). Hill, R.V., et al. (2008). Dyrosaurid (Crocodyliformes: Mesoeucrocodylia) Fossils from the Upper Cretaceous and Paleogene of Mali: Implications for the Phylogeny and Survivorship across the K/T Boundary. American Museum Novitates, Number 3631. Holliday, C.M. and N.M. Gardner (2012). A New Eusuchian Crocodyliform with Novel Cranial Integument and Its Significance for the Origin and Evolution of Crocodylia. PLoS ONE, 7(1). Krause, D.W. and N.J. Kley (eds.)(2010). Simosuchus clarki (Crocodyliformes, Notosuchia) from the Late Cretaceous of Madagascar. Journal of Vertebrate Paleontology, Vol.30, Supplement to Number 5. (89 pages, 46MB download) O'Connor, P.M., et al. (2010). The evolution of mammal-like crocodyliforms in the Cretaceous Period of Gondwana. Nature, Vol.466. (Thanks to jpc for pointing this one out!) Sereno, P.C. and H.C.E. Larsson (2009). Cretaceous Crocodyliforms from the Sahara. ZooKeys, 28. Sereno, P.C., et al. (2003). A New Notosuchian from the Early Cretaceous of Niger. Journal of Vertebrate Paleontology, 23(2). Sereno, P.C., et al. (2001) The Giant Crocodyliform Sarcosuchus from the Cretaceous of Africa.Science, Vol.294. Sertich, J.J. and P.M. O'Connor (2014). A New Crocodyliform from the Middle Cretaceous Galula Formation, Southwestern Tanzania. Journal of Vertebrate Paleontology, 34(3). Young, M.T., et al. (2016). Revision of the enigmatic crocodyliform Elosuchus felixi de Lapparent de Boin, 2002 from the Lower-Upper Cretaceous boundary of Niger: potential evidence for an early of the clade Dyrosauridae. Zoological Journal of the Linnean Society. Cretaceous Crocodylomorphs - Asia/Malaysia/Pacific Islands Lauprasert, K., et al. (2011). Atoposaurid crocodyliforms from the Khorat Group of Thailand: first record of Theriosuchus from Southeast Asia. Palaontol Z,83. Martin, J.E., et al. (2013). A Large Pholidosaurid in the Phu Kradung Formation of North-Eastern Thailand. Palaeontology, 57(4). Mook, C.C. (1924). A New Crocodilian from Mongolia. American Museum Novitates, Number 117. Osmolska, H., S. Hua and E. Buffetaut (1997). Gobiosuchus kielanae (Protosuchia) from the Late Cretaceous of Mongolia: anatomy and relationships. Acta Palaeontologica Polonica, 42(2). Pol, D. and M.A. Norell (2004). A New Gobiosuchid Crocodyliform Taxon from the Cretaceous of Mongolia. American Museum Novitates, Number 3458. Pol, D. and M.A. Norell (2004). A New Crocodyliform from Zos Canyon, Mongolia. American Museum Novitates, Number 3445. Pol, D., A.H. Turner and M.A. Norell (2009). Morphology of the Late Cretaceous Crocodylomorph Shamosuchus djadochtaensis and a Discussion of Neosuchian Phylogeny as Related to the Origin of Eusuchia. Bulletin of the American Museum of Natural History, Number 324. (103 pages, 42 MB download) Pol, D., et al. (2004). Basal crocodyliforms from the Lower Cretaceous Tugulu Group (Xinjiang, China), and the phylogenetic position of Edentosuchus. Cretaceous Research, 25. Prasad, G.V.R. and F. de Lapparent de Broin (2002). Late Cretaceous crocodile remains from Naskal (India): comparisons and biogeographic affinities. Annales de Paleontologie, 88. Rana, R.S. and K.K. Sati (2000). Late Cretaceous - Palaeocene Crocodilians from the Deccan Trap-Associated Sedimentary Sequences of Peninsular India. Journal of the Palaeontological Society of India, Vol.45. Sun, A.-L. (1958). A New Species of Paralligator from Sungarian Plain. Vertebrata PalAsiatica, 2(4). Wilson, J.A., M.S. Malkani and P.D. Gingerich (2001). New Crocodyliform (Reptilia, Mesoeucrocodylia) from the Upper Cretaceous Pab Formation of Vitakri, Balochistan, Pakistan. Contributions from the Museum of Paleontology - The University of Michigan, Vol.30, Number 12. Wu, X.-C., Z.-W. Cheng and A.P. Russell (2001). Cranial anatomy of a new crocodyliform (Archosauria: Crocodylomorpha) from the Lower Cretaceous of Song-Liao Plain, northeastern China. Can.J. Earth Sci., 38. Yun, C.-S., J.-D. Lim and S.-Y. Yang (2004). The first crocodyliform (Archosauria: Crocodylomorpha) from the Early Cretaceous of Korea. Current Science, Vol.86, Number 9. Cretaceous Crocodylomorphs - Australia/New Zealand Salisbury, S.W., et al. (2006). The origin of modern crocodyliforms: new evidence from the Cretaceous of Australia.Proc. R. Soc. B. Cretaceous Crocodylomorphs - Europe (including Greenland) Blanco, A., et al. (2015). A new species of Allodaposuchus (Eusuchia, Crocodylia) from the Maastrichtian (Late Cretaceous) of Spain: phylogenetic and paleobiological implications. PeerJ, 3:e1171. Buscalioni, A.D., et al. (2001). A Revision of the Crocodyliform Allodaposuchus precedens from the Upper Cretaceous of the Hadeg Basin, Romania. Its Relevence in the Phylogeny of Eusuchia. Journal of Vertebrate Paleontology, 21(1). Buscalioni, A.D., et al. (1984). An Immature Specimen of the Crocodilian Bernissartia from the Lower Cretaceous of Galve (Province of Teruel, Spain). Palaeontology, Vol.27, Part 4. Clark, J.M. and M.A. Norell (1992). The Early Cretaceous Crocodylomorph Hylaeochampsa vectiana from the Wealden of the Isle of Wight. American Museum Novitates, Number 3032. Company, J., et al. (2005). A New Species of Doratodon (Crocodyliformes: Ziphosuchia) from the Late Cretaceous of Spain. Journal of Vertebrate Paleontology, 25(2). de Andrade, M.B., et al. (2011). A new Berriasian species of Goniopholis (Mesoeucrocodylia, Neosuchia) from England, and a review of the genus. Zoological Journal of the Linnean Society, 163. Efimov, M.B. and S.B. Leschinskii (1998). The first finding of a fossil crocodile skull in Siberia. Paleontologiya i Stratigraiya, 3. Joffe, J. (1967). The 'Dwarf' Crocodiles of the Purbeck Formation, Dorset: A Reappraisal. Palaeonotolgy, Vol.10, Part 4. Narvaez, I., et al. (2015). New Crocodyliforms from Southwestern Europe and Definition of a Diverse Clade of European Late Cretaceous Basal Eusuchians. PLoS ONE, 10(11). Puértolas-Pascual, E., R. Rabal-Garcés, and J.I. Canudo (2015). Exceptional crocodylomorph biodiversity of "La Cantalera" site (lower Barremian; Lower Cretaceous) in Teruel, Spain. Palaeontologia Electronica, 18.2.28A. Puértolas-Pascual, E., J.I. Canudo and P. Cruzado-Caballero (2011). A New Crocodylian from the Late Maastrichtian of Spain: Implications for the Initial Radiation of Crocodyloids. PLoS ONE, 6(6). (Read on-line or download a copy.) Salisbury, S.W. (2002). Crocodilians from the Lower Cretaceous (Berriasian) Purbeck Limestone Group of Dorset, Southern England. Special Papers in Palaeontology, 68. Sweetman, S.C., U. Pedreira-Segade and S.U. Vidovic (2015). A new bernissartiid crocodyliform from the Lower Cretaceous Wessex Formation (Wealden Group, Barremian) of the Isle of Wight, southern England. Acta Palaeontologica Polonica, 60(2). Cretaceous Crocodylomorphs - North America Adams, T.L., et al. (2011). First Occurrence of the Long-Snouted Crocodyliform Terminonaris (Pholidosauridae) from the Woodbine Formation (Cenomanian) of Texas. Journal of Vertebrate Paleontology, 31(3). Bennett, G.E. (2012). Community structure and paleoecology of crocodyliforms from the upper Hell Creek Formation (Maastrichtian), eastern Montana, based on shed teeth. Jeffersoniana, Number 28. Brochu, C.A. (2004). A New Late Cretaceous Gavialoid Crocodylian from Eastern North America and the Phylogenetic Relationships of Thoracosaurs. Journal of Vertebrate Paleontology, 24(3). Colbert, E.H. and R.T. Bird (1954). A Gigantic Crocodile from the Upper Cretaceous Beds of Texas. American Museum Novitates, Number 1688. Farke, A.A., et al. (2014). Leidyosuchus (Crocodylia: Alligatoroidea) from the Upper Cretaceous Kairparowits Formation (Late Campanian) of Utah, USA. PaleoBios, 30(3). Gilmore, C.W. (1911). A New Fossil Alligator from the Hell Creek Beds of Montana. Proceedings U.S. National Museum, Vol.41, Number 1860. Lucas, S.G. (1992). Cretaceous - Eocene Crocodilians from the San Juan Basin, New Mexico. New Mexico Geological Society Guidebook, 43rd Field Conference, San Juan Basin IV. Lucas, S.G., et al. (2006). The Giant Crocodylian Deinosuchus from the Upper Cretaceous of the San Juan Basin, New Mexico. 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A Review of the Plio-Pleistocene Crocodilian Genus Pallimnarchus. Proceedings of the Linnean Society of New South Wales, 117. (Thanks to Oxytropidoceras for finding this one.) Pleistocene Delfino, M. and J. De Vos (2014). A giant crocodile in the Dubois Collection from the Pleistocene of Kali Gedeh (Java). Integrative Zoology, 9. Molnar, R.E. (1981). Pleistocene ziphodont crocodilians of Queensland. Records of the Australian Museum, 33(19). Molnar, R.E., T. Worthy and P.M.A. Willis (2002). An Extinct Pleistocene Endemic Mekosuchine Crocodylian from Fiji. Journal of Vertebrate Paleontology, 22(3). Mook, C.C. (1959). A New Pleistocene Crocodilian from Guatemala. American Museum Novitates, Number 1975. Mook, C.C. (1921). Description of a Skull of the Extinct Madagascar Crocodile, Crocodilus robustus Vaillant and Grandidier. Bulletin of the American Museum of Natural History, Vol.XLIV, Article IV. Morgan, G.S., R. Franz, and R.I. Crombie (1993). 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Fossil Crocodilians of Florida. The Plaster Jacket, Number 5. (Thanks to Nimravus for pointing this one out!) Colbert, E.H. and C.C. Mook (1951). The Ancestral Crocodilian Protosuchus. Bulletin of the American Museum of Natural History, Vol.97, Article 3. Mook, C.C. (1925). A Revision of the Mesozoic Crocodilia of North America. A Preliminary Report. Bulletin of the American Museum of Natural History, Vol.LI, Article IX. (39MB, 134 pages) Mook, C.C. (1924). Further Notes on the Skull Characters of Gavialosuchus americana (Sellards). American Museum Novitates, Number 155. General Crocodylomorpha - South America/Central America/Caribbean Mook, C.C. (1921). Brachygnathosuchus braziliensis, a New Fossil Crocodilian from Brazil. Bulletin of the American Museum of Natural History, Vol.XLIV, Article VI. Riff, D., et al. (2010). 16. Neogene crocodile and turtle fauna in Northern South America. In: Amazonia, Landscape and Species Evolution: A Look into the Past. Hoorn, C. and E.P. Wesselingh (eds.), Blackwell Publishing. General Crocodylomorpha Brochu, C.A. (2003). Phylogenetic Approaches Toward Crocodylian History. Ann.Rev. Earth Planet Sci., 31. Brochu, C.A. (2000). Crocodylian Snouts in Space and Time: Phylogenetic Approaches Toward Adaptive Radiation. From the Symposium: Beyond Reconstruction. Using Phylogenies to Test Hypotheses About Vertebrate Evolution. De Andrade, M.B., R.J. Bertini and A.E.P. Pinheiro (2006). Observations on the Palate and Choanae Structures in Mesoeucrocodylia (Archosauria, Crocodylomorpha): Phylogenetic Implications. Revista bras.paleont., 9(3). Erickson, G.M., et al. (2012). Insights into the Ecology and Evolutionary Success of Crocodilians Revealed through Bite-Force and Tooth-Pressure Experimentation. PLoS ONE, 7(3). Irmis, R.B., S.J. Nesbitt and H.-D. Sues (2013). Early Crocodylomorpha. Geological Society, London, Special Publications 2013, Vol.379. Markwick, P.J. (1998). Fossil crocodilians as indicators of Late Cretaceous and Cenozoic climates: implications for using palaeontological data in reconstructing palaeoclimate. Palaeogeography, Palaeoclimatology, Palaeoecology, 137. Martin, J.E., et al. (2014). Sea surface temperature contributes to marine crocodylomorph evolution. Nature Communications, 5:4658. Mook, C.C. (1921). Skull Characters of the Recent Crocodilia, with Notes on the Affinities of the Recent Genera. Bulletin of the American Museum of Natural History, Vol.LXIV, Article XIII. Norell, M.A. and G.W. Storrs (1989). Catalogue and Review of the Type Fossil Crocodilians in the Yale Peabody Museum. Peabody Museum of Natural History Postilla, Number 203. Oaks, J.R. (2007). Phylogenetic Systematics, Biogeography, and Evolutionary Ecology of the True Crocodiles (Eusuchia: Crocodylidae: Crocodylus). Masters Thesis - Louisiana State University. Scheyer, T.M., et al. (2013). Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics. Nature Communications, 4:1907. Seymour, R.S., et al. (2004). Evidence for Endothermic Ancestors of Crocodiles at the Stem of Archosaur Evolution. Physiological and Biochemical Zoology, 77(6).
  9. Hello, Found this tiny tooth of about 1 x 1 cm in marine Jurassic sediment in the Boulonnais. North of France. Could this be a marine crocodile tooth, such as machimosaurus? Regards, Niels
  10. From the album Holzmaden

    A very damaged and because of that small (0.5 cm long) Steneosaurus tooth from the quarry Kromer in Holzmaden, Lower Jurassic.
  11. So Gang I've been watching the discussion about that Calvert Cliffs curved distinctly single grooved claw/tooth unknown and I think I understand why Harry was thinking not croc right off the bat and was looking at some of what I thought were crocodile teeth I had and want confirmation on a couple of things ... So I've got two specimens from awhile ago...Manatee County, surface finds so probably Peace River FM but I really cant confirm...Mio/Plio Pleistocene..a mix of marine/freshwater and terrestrial stuff... The first tooth has that noticeably multi small grooved striated look to it and seems essentially hollow which I thought was typical croc from other specimens I've seen. The other darker tooth has less distinct striations and seems to have a slight edge front and back to it and seems thicker and more solid...maybe its just nearer the end of the tooth and would be hollow otherwise? but that part of the upper part of the tooth is gone??? Am I dealing simply with two levels of preservation of croc teeth and the first is simply much more worn and a smaller, thinner tooth or is the 2nd an alligator or possibly even something else? All help is appreciated... Regards, Chris
  12. From the album Fleury - autumn 2016

    A lutetian indet. Crocodile tooth from Fleury la rivière - Marne - France
  13. A nice lower jaw bone of a Phosphatosaurus gavialoides, a terrifying crocodile from the Eocene period that could measure up to 9 meters long. It is part of the Dyrosauridae family, and was very closely related to Sokotosuchus, from the Cretaceous period.
  14. Salutations As usual of late, I am seeking an identification for a fossil-in this case, a claw. One expert proposed dromornithid ungual, and still yet others say it is not bird, but may be crocodile or turtle, though an identification could not positively be placed. It is also not mammal. So, I was hoping some of you might have some ideas as to what it belongs to. Comes from the Pleistocene, Darling Downs, Queensland, Australia
  15. A damaged 1.3 cm long Steneosaurus tooth from the quarry Kromer in Holzmaden (Lower Jurassic).
  16. Hi guys Can I have a rough id/confirmation on the teeth below. Not up to my usual stand of photography but I just really want to get into the ballpark before I start imaging properly. Croc I think?
  17. From the album Vaches Noires - april and march 2016

    Crocodile tooth from callovian clay of "les Vaches Noires" - Normandy - France
  18. Hello, I would appreciate some help identifying this tooth from the cretaceous fossil beds of Big Brook, NJ. The tooth appears to be reptilian, I would assume crocodile or mosasaur (but seems too small). The cross section is almost circular and there are distinct carinae on both edges (180 degrees apart). Thanks!
  19. Hello I just came to your fantastic community and i want your knowledge and experiences to answer my questions if you can. I used to collect ammonites and trilobites, but my love for dinos pushed me to search about them and i found some cheap spinosaurus teeth. I thought it was a good start so i purchased some in low price (I couldnt beleave that i could take a dinosaur part so cheap, but i saw the spino teeth are very common) They look real teeth to me and i dont care about any restoration or breakage because i just want a dinosaur tooth. The info from the dealer: DINOSAUR TEETH 55MM 40mm Spinosaurus aegyptiacus Cenomanian CRETACEOUS Kem Kem, MOROCCO The photo is from him. I am waiting for them to come in the next few days so i can post some new pictures if you want. So in your opinion are they real dinosaur teeth? Are from Spinosaurus? Whats the difference from the teeth from other animals, lets say crocodile teeth or something else? Thanks.
  20. Well, I sure feel like a nitwit! Remember this topic I made, about how it's wise not to throw away your supposedly-fake fossil, because even the experts can get it wrong? > Guess what? You guys were right all along - It IS a fake, or at least, the root is. So for 2 years I've been trying to ID the tooth. It looks like the crown of a croc, yet has a full root. I asked the seller, but he was adamant it was a real tooth. I checked with several other experts, and a taxidermist. After handling it, all confirmed my tooth and root was real. Hence, despite Thomas Kapitany, Nate Curtis and you guys telling me otherwise, I was convinced mine was real. Still, I just couldn't lock it down to a species. Was it tiger? Croc? Pinniped? Whale? Then a group of big cat fans messaged me, asking for info on my tooth, e.g. weight, length... They did a lot of calculations, cross-section fitting of my tooth into tiger jaws etc, and came to the conclusion mine was the fabled lost canine of the Ngandong Tiger. As a collector, I was more than happy to accept that ID. For months, I was happily ignorant. But I couldn't ignore my nagging suspicions this tooth isn't what it appears to be. I went online to search, and what do you know? I found 6 other Java teeth like mine, all ID-ed as tiger. I have 2 teeth, and my friend has 3, that means all 11 of these teeth that are known online are fully-rooted. Let that sink in a moment. Fully-rooted teeth are rare in the fossil record, and now 11 out of 11 have that? Not likely at all. I tried looking for instances with partial roots, or broken ones but there were none. Here's an album compilation of the 11 teeth > As it turns out, the Javanese really like tiger. I found 4 Indonesian seller marketing croc teeth as tiger ones. Thomas Kapitany also revealed to me they've been faking fossils for decades. I broke my smaller tooth apart, this is what I saw > Let me say first the Javanese are darn good at faking this. I thought I knew plenty about Moroccan and Chinese fake fossils, but this one just threw me off utterly. I will relabel my smaller tooth crown as a croc, and the big one will stay as it is - a reminder to myself to be neutral when it comes to ID-ing a fossil; I was so biased towards tiger that I failed to see all the red flags. Too often, the problem many of us is that a collector refuses to acknowledge when he has a misidentified fossils (e.g. a concretion instead of an egg, rugosa coral instead of teeth). I happened to be one of them. Sometimes, the experts really do know better
  21. Hello, I have a crocodile maxilla from Hell Creek Formation of Montana. It is 6.23 inches long, and has planted Borealoschus/Leidyosuchus teeth in it, though I do not know how many teeth are original. Any ideas to the genus/species?
  22. From the album Giant Crocodiles

    100.5 - 93.9 mya, El Begaa, Taouz, Kem Kem beds, 3.03 inches long, Note: The identity of this tooth isn't firmly established. Elosuchus teeth from Kem Kem tend to have a different shape. Do comment on this if you have any additional info on this tooth.
  23. Here its a huge crocodile fossil tooth its about 2.5 inches and likely to be from Java, Solo River could it be either from Crocodilus ossifragus or Crocodilus porus?
  24. From the album Giant Crocodiles

    Sarcosuchus imperator Early Cretaceous, 112 mya Elhaz Formation Gadoufaoua, Tenere Desert, Niger 1.82 inches long