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Showing results for tags 'squamate'.
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Five isolated squamata vertebrae found in Central Texas Eagle Ford between 2016 and 2020 were donated to SMU and Dr. Polcyn for study. Dr. Polcyn's email response after receiving the fossils: "There is a nice assortment.... Dallasaurus, Coniasaurus, and the large vert I believe is squamate, but will need more work. I will have to set them aside for now while I finish some other projects but will come back to them at some point in the near future. Thanks for the contribution!"
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- coniasaur
- dallasaurus
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From the album: Post Oak Creek
When I initially found this I was hoping it was Mosasaurid, however upon some reading, I decided it's more likely to be a sister group squamate. In particular, the labial sulcus convinced me it is probably C. crassidens (see Caldwell 1999). It is however much larger than any Coniasaurus teeth I've seen published. -
From the album: Squamates
When I initially found this I was hoping it was Mosasaurid, however upon some reading, I decided it's more likely to be a sister group squamate. In particular, the labial sulcus convinced me it is probably C. crassidens (see Caldwell 1999). It is however much larger than any Coniasaurus teeth I've seen published.-
- coniasaurus crassidens
- coniasaurus
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From the album: Squamates
Originally believed to be an anterior position of Coniasaurus, this is an undescribed squamate reptile tooth from the Turonian of North TX (via pers. comm. with Mike Polcyn; discovered 4/20/2022). It has only a distal carina which is offset, some faceting on the labial face of the crown, and textured enamel which becomes smooth on the mesial edge. -
From the album: Squamates
A small tooth from a small aquatic reptile that lived during the Turonian of North TX. They are small, squat teeth with textured enamel, and possess only an indistinct distal carina (no mesial carina). -
From the album: Prae's Mosasaurs
Carinodens belgicus tooth.-
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- mosasaur
- mosasauridae
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From the album: Prae's Mosasaurs
Tooth from the mosasaur Carinodens belgicus.-
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- mosasaur
- mosasauridae
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From the album: Prae's Mosasaurs
Tooth of Carinodens belgicus from the Moroccan Phosphates.-
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- morocco
- moroccan phosphates
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Identified as Carinodens belgicus based on occlusal aspect ratio (labiolingual/mesiodistal <2.2).
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- carinodens
- carinodensbelgicus
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I have a pretty extensive collection of shark, ray, fish and other micros from sites all over the US, Europe, North Africa and Australia. You can see a very small part of my collection in my TFF posts at the below links. As I add new posts to TFF I'll update this list. I want to thank Earl M. for organizing my micro posts as shown below, which is a much more useful listing than in my original post: Paleozoic Silurian E. m. Silurian (Wenlockian) - Rochester Sh. – Niagara Co., New York http://www.thefossil.../?hl=+new +york Devonian E. m. Devonian (Eifelian) – Columbus Lmst. – Columbus, Franklin Co., C. Ohio (see Martin, 2002) http://www.thefossil...ork#entry441978 (placoid scales, bony fish teeth) Lt. m. Devonian (Givetian) – Darien bed, Wanakah Sh., Ludlowville Fm., Hamilton Grp. – Bethany, Genesee Co., NW New York http://www.thefossil.../?hl=+new +york E. lt. Devonian (Frasnian) – North Evans Lmst. Mbr., Genesee Fm. – Hamburg, Erie Co., New York http://www.thefossil.../?hl=+new +york Mesozoic Jurassic M. m. Jurassic (Bathonian) – Great Oolite lmst. – England, U.K. http://www.thefossil...united-kingdom/ (incl. Acrodus) E. lt. Jurassic (Oxfordian) - Kellaways Clay, lw. Oxford Clay – Peterborough, England, U.K. http://www.thefossil...o +sr +jurassic (onychites, bony fish teeth) http://www.thefossil...art-2/?p=489587 (Protospinax, serpulid worm tubes, etc.) http://www.thefossil...kingdom-part-3/ (more onychites, belemnites, serpulid worm tubes, Protospinax, Omatoscyllium) Cretaceous Early Cretaceous Lt. E. (“m.”) Cret. (Albian) – Kiowa Sh. Fm., m. Dakota Grp. – Kansas http://www.thefossil...ros#entry433986 (incl. Onchopristis dunklei) Late Cretaceous Lt. m. Cenomanian – Graneros Sh. Fm., basal Colorado Grp. – Kansas http://www.thefossil...ansas/?p=507345 E. lt. Cenomanian – basal Lincoln Lmst. Mbr., basal Greenhorn Fm., lower Colorado Grp. (transgressive lag) – Kansas http://www.thefossil...os-from-kansas/ http://www.thefossil...ansas/?p=507330 (Squalicorax falcatus; Onchopristis dunklei, Ptychodus decurrens, Rhinobatos; Enchodus petrosus) Lt. m. Turonian – Blue Hill Sh. Mbr., m. Carlile Sh. Fm., m. Colorado Grp. (regressive) – Kansas (see Everhart et al., 2003) http://www.thefossil...os-from-kansas/ (Chiloscyllium greeni, Scapanorhynchus r. raphiodon, Squalicorax falcatus; Ptychotrygon spp., Ischyrhiza m. schneideri, common Rhinobatos incertus) http://www.thefossil...ros#entry437979 E. lt. Turonian – Codell Ss. Mbr., upper Carlile Sh. Fm., m. Colorado Grp. - Kansas http://www.thefossil...os-from-kansas/ (Hybodus, Scapanorhynchus r. raphiodon; Ptychotrygon, Rhinobatos) E. lt. Turonian – Turner Sandy Mbr., m. Codell Ss. Mbr., upper Carlile Fm., m. Colorado Grp. – Grant Co., NE South Dakota (see Stewart & Martin, 1993; Jorgensen and Larson, 1996; Lewis, 1999; & Lewis et al., 2000) http://www.thefossil...o-south-dakota/ (Ptychotrygon, Ischyrhiza, Brachyrhizodus mcnultyi) http://www.thefossil...-dakota-part-2/ (Squalicorax falcatus, Rhinobatos, Enchodus) Latest Turonian (not e. Coniacian) – basal Atco Fm. (transgressive lag), basal Austin Grp. – TXI Q., Midlothian, Johnson Co., NE Texas (mostly a shallow-water fauna, except for the Ptychodus and Pseudocorax) (see Meyer, 1974; Welton & Farish, 1993) http://www.thefossil...ros#entry417293 (Scapanorhynchus raphiodon, Onchopristis dunklei, Paralbula, Ptychotrygon) http://www.thefossil...i-quarry-texas/ (Scapanorhynchus r. raphiodon, Squalicorax falcatus, Onchopristis dunklei, Ptychotrygon triangularis, Ischyrhiza m. schneideri, Hadrodus priscus, Paralbula) Santonian – Hosta Tongue, Pt. Lookout Ss. – C. New Mexico (see Bourdon et al., 2011) http://www.thefossil...rom-new-mexico/ (Hybodus, Squatina/Cedarstroemia/Columbusia, Cantioscyllium descipiens; Ptychotrygon, Ischyrhiza, Rhinobatos, Brachyrhizodus mcnulti, Ptychodus mortoni, assorted ray dermal denticles; Enchodus petrosus; juv. croc tooth crown) Early Campanian – Menefee Fm., m. Mesa Verde Grp. – eastern San Juan Basin, Rio Arriba Co., NW New Mexico http://www.thefossil...-of-new-mexico/ E. m. Campanian – basal Ozan Fm., basal Taylor Grp. – North Sulphur River?, Fannin Co., Texas (see McKinzie et al., 2001) http://www.thefossil...ation-of-texas/ (Chiloscyllium greeni, Scyliorhinus, Odontaspis aculeatus, Carcharias holmdeli, Pseudocorax laevis, Squalicorax kaupi – mostly deep-water sharks) http://www.thefossil...ation-of-texas/ (Ptychotrygon, Sclerorhynchus, Ischyrhiza; Rhinobatos) http://www.thefossil...ation-of-texas/ (Hadrodus priscus branchials, Anomoeodus phaseolus prearticular (lw. toothplate) teeth, Enchodus petrosus dentary fangs, sm. dercetid scales, misl. bony fish teeth) Campanian – hard chalk, Fm.? – Hallencourt, France http://www.thefossil...ros#entry411927 (partial squid beak, centrodorsal ossicles of free-swimming comatulid crinoids, calcified chitin lobster claw knobs; Chiloscyllium, Squatirina kannensis, Anomotodon, Galeorhinus girardoti [usus. Maastr.], Paraorthacodus conicus, etc.) Lt. Campanian – Kirtland & Fruitland fms. (estuarine/fluviatile) – New Mexico http://www.thefossil...-of-new-mexico/ (with Myledaphus bipartitus, Protoplatyrhina renae, gar & croc) Lt. Maastrichtian – Escondido Fm. – south Texas (see Case & Cappetta, 1997) http://www.thefossil...ation-of-texas/ Cretaceous, Maastrichtian,Tchivoula Quarry, near Hinda, Congo http://www.thefossilforum.com/index.php?/topic/80695-micro-shark-ray-and-bony-fish-specimens-from-the-miocene-of-france-and-cretaceous-of-the-congo/ Cenozoic Paleocene Lt. Paleocene (Thanetian) – zone 4, Aquia Fm.– Maryland and Virginia (see Ward & Wiest, 1990) http://www.thefossil...on-of-maryland/ http://www.thefossil...on-of-virginia/ Eocene Eocene - Orangeburg Formation - LaFarge Quarry - Harleyville, South Carolina http://www.thefossilforum.com/index.php?/topic/82895-micro-shark-ray-and-fish-teeth-from-the-eocene-of-south-carolina/ E. Eocene (Ypresian) – Nanjemoy Fm. – Stafford Co., Virginia (see Ward & Wiest, 1990; Weems & Grimsley, 1999) http://www.thefossil...ginia/?p=510087 L. Eocene - Chadron Formation - White River Group - Sioux County Nebraska (terrestrial) http://www.thefossilforum.com/index.php?/topic/66750-terrestrial-micros-from-the-eocene-chadron-formationoligocene-brule-formation-white-river-group-sioux-county-nebraska/#entry699681 Oligocene E. Oligocene? (Rupelian?) (incl. Hemipristis curvatus & Isogomphodon frequens) – in coarse gravel – Alafia River bed, Florida http://www.thefossil...ver-in-florida/ Oligocene - Brule Member of the White River Group - Sioux County, Nebraska http://www.thefossilforum.com/index.php?/topic/59218-oligocene-terrestrial-micros-from-nebraska/ http://www.thefossilforum.com/index.php?/topic/66138-oligocene-micros-from-the-m-m-ranch-in-nebraska/ Miocene E. Miocene – Coosawhatchee Fm., Hawthorn Grp. – Gainesville, Alachua Co., N. peninsular Florida http://www.thefossil...sville-florida/ http://www.thefossil...art-3/?p=482047 M. Miocene – Round Mtn. Silt Fm. – Sharktooth Hill site, Ernst Ranch, near Bakersfield, Kern Co., SC California http://www.thefossil...eld-california/ Miocene – zone 16, Choptank Fm. – Virginia http://www.thefossil...ros#entry427430 (sharks, rays, Lagodon, Pogonias) http://www.thefossil...ros#entry433798 (a var. of rays, bony fish otoliths) http://www.thefossil...ros#entry460266 Miocene, Langhian Age, lower "dark" horizon, Loupian Quarry, France http://www.thefossilforum.com/index.php?/topic/80695-micro-shark-ray-and-bony-fish-specimens-from-the-miocene-of-france-and-cretaceous-of-the-congo/ M. Miocene? – Pungo R. Fm.? – Lee Crk. (phosphate) Mine, N. of Aurora, Beaufort Co., CE. North Carolina (see Purdy et al., 2001) http://www.thefossil...from-aurora-nc/ (Alopias, Rhincodon, Dasyatis, Raja, Paramobula, etc.) http://www.thefossil...-window-screen/ http://www.thefossil...ros#entry453842 Lt. Miocene?– upper Bone Valley Fm.?, in coarse gravel – Alafia River bed, Florida http://www.thefossil...ver-in-florida/ (incl. Dasyatis and Rhynchobatus teeth) Lt. Miocene? – upper Bone Valley Fm.? – Joshua Crk. bed coarse gravel, Florida http://www.thefossil...orida/?p=477293 Lt. Miocene – upper Bone Valley Fm. – phosphate mine, Polk Co., C. peninsular Florida http://www.thefossil...ine-in-florida/ Lt. Miocene? – upper Bone Valley Fm.? – Peace River bed gravel, nr. Rt. 17 bridge, nr. Zolfo Sprs., Hardee Co., C. peninsular Florida http://www.thefossil...ver-of-florida/ http://www.thefossil...florida-part-2/ http://www.thefossil...eek-in-florida/ (with Isistius teeth) Pleistocene Pleistocene - Melbourne Bone Bed - Merritt Island, Florida http://www.thefossilforum.com/index.php?/topic/58306-pleistocene-micros-from-merritt-island-florida/?p=620548 References Bourdon, J., K. Wright, S. G. Lucas, J. A. Spielmann, and R. Pence, 2011. Selachians from the Upper Cretaceous (Santonian) Hosta Tongue of the Point Lookout Sandstone, central New Mexico. Bull., New Mexico Mus. Nat. Hist. & Sci., no. 52, iv + 54 p., 28 figs. Case, G. R., and H. Cappetta, 1997. A new selachian fauna from the late Maastrichtian of Texas (Upper Cretaceous/Navarroan; Kemp Formation). Munchner Geowissenschaftliche Abhandlung, Reihe A, vol. 34, pp. 131-189, 15 pl. Duffin, C. J., 2001. Synopsis of the selachian genus Lissodus Brough, 1935. Neues Jahrbuch fur Geologische und Paleontologische Abhandlungen, vol. 221, no. 2, pp. 145-218. Everhart, M., P. Everhart, E. M. Manning, and D. E. Hattin, 2003. A middle Turonian marine fish fauna from the upper Blue Hill Shale Member, Carlile Shale, of north central Kansas (abstract). Journal of Vertebrate Paleontology, vol. 23, supplement to no. 3, p. 49A. Goody, P. C., 1976. Enchodus (Teleostei: Enchodontidae) from the Upper Cretaceous Pierre Shale of Wyoming and South Dakota, with an evaluation of the North American enchodontid species. Palaeontographica, Abteilung A, vol. 152, no. 4-6, pp. 91-112, 3 pl. Jorgensen, S. D., and N. L. Larson, 1996. The Carlile Shale of the Milbank Granite District, Grant County, South Dakota; with regional correlations based on ammonite and shark faunas (abstract). Geological Society of America, Rocky Mountain Section, Abstracts with Programs, vol. 28, no. 4, pp. 12-13. Kelly, S. R. A., and R. G. Bromley, 1984. Ichnological nomenclature of clavate borings. Paleontology, vol. 27, no. 4, pp. 793-807. Lewis, S. E., 1999. Selachians from the Carlile Formation (Cretaceous-Turonian) of Grant County, South Dakota. St. Cloud State University (St. Cloud, Minnesota), Occasional Papers in Paleobiology, vol. 9, no. 1, 27 p. Lewis, S. E., T. J. Kunkel, S. M. Matrious, and T. T. Behnke, 2000. Invertebrate and vertebrate fauna from the Carlile Formation (Cretaceous-Turonian) of Grant County, South Dakota. St. Cloud State University (St. Cloud, Minnesota), Occasional Papers in Paleobiology, vol. 10, no. 1, 39 p. Martin, R. L., 2002. Taxonomic revision and paleoecology of middle Devonian (Eifelian) fishes of the Onondaga, Columbus, and Delaware limestones of the eastern United States. McKinzie, M. G., R. Morin, and E. Swiatovy, 2001. Fossil collector's guide to the North Sulphur River. Dallas Paleontological Society, Occasional Papers, vol. 4, 119 p., 20 pl. McNulty, C. L., Jr., and B. H. Slaughter, 1972. The Cretaceous selachian genus Ptychotrygon Jaekel, 1894. Eclogae Geologie Helvetiae, vol. 65, no. 3, pp. 647-655, 1 pl. Meyer, R. L., 1974. Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the Gulf Coastal Plain. Unpublished PhD dissertation, Southern Methodist University, Dallas, xiv + 419 p. Purdy, R. W., V. P. Schneider, S. P. Applegate, J. H. McLellan, R. L. Meyer, and B. H. Slaughter, 2001. The Neogene sharks, rays, and bony fishes from Lee Creek Mine, Aurora, North Carolina. In C. E. Ray and D. J. Bohaska, eds., Geology and Paleontology of the Lee Creek Mine, North Carolina, III. Smithsonian Contributions to Paleontology, no. 90, p. 71-202. Rees, J., and C. J. Underwood, 2002. The status of the shark genus Lissodus Brough, 1935, and the position of nominal Lissodus species within the Hybodontoidea (Selachii). Journal of Vertebrate Paleontology, vol. 22, no. 3, pp. 471-479. Schwimmer, D. R., J. D. Stewart, and G. D. Williams, 1997. Scavenging by sharks of the genus Squalicorax in the Late Cretaceous of North America. Palaios, vol. 12, pp. 71-83. Slaughter, B. H., and M. Steiner, 1968. Notes on the rostral teeth of ganopristine sawfishes, with special reference to Texas material. Journal of Paleontology, vol. 42, no. 1, pp. 233-239. Stewart, J. D., and J. E. Martin, 1993. Late Cretaceous selachians and associated marine vertebrates from the Dakota Rose granite quarry, Grant County, South Dakota. South Dakota Academy of Science, Proceedings, vol. 72, pp. 241-248, 1 pl. Ward, D. J., and R. L. Wiest, 1990. A checklist of Paleocene and Eocene sharks and rays (Chondrichthyes) from the Pamunkey Group, Maryland and Virginia, U.S.A.. Tertiary Research (Leiden, Holland), vol. 12, no. 2, pp. 81-88. Weems, R. E., and Grimsley, G. J. (eds.), 1999. Early Eocene vertebrates and plants from the Fisher/Sullivan site (Nanjemoy Formation), Safford County, Virginia. Virginia Div. of Min. Res., Publication 152, 159 p. Welton, B. J., and R. F. Farish, 1993. The collector’s guide to fossil sharks and rays from the Cretaceous of Texas. Horton Printing Co., Dallas, xviii + 204 p. Marco Sr.
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