| Description | Neurankylus is an extinct genus of turtles in the Testudines order. It was placed within the monotypic family Neurankylidae. The type species, Neurankylus eximius, was described by Lawrence Lambe in 1902. The species N. lithographicus was discovered in the Milk River Formation, alongside the holotype of the pachycephalosaur Acrotholus.
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| Source Data | |
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| Rank | genus |
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| Taxonomy (GBIF,PBDB) | Life : Animalia : Chordata : Reptilia : Testudines : Baenidae : Neurankylus |
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| Taxonomic Status (GBIF) | accepted |
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Classification
(PBDB,GBIF) | |
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| Scientific Name | Neurankylus Lambe, 1902 |
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| Name Published In | in Osborn & Lambe, Geol. Surv. Canad. Contr. Pal., 3, (2 |
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| Opinions (PBDB) | | Name | Rank | Opinion | Evidence | Author |
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| Neurankylus | genus | belongs to Chelydridae | stated with evidence | Lambe, 1902 | | Neurankylus | genus | belongs to Baenidae | stated with evidence | Hay, 1908 | | Neurankylus | genus | belongs to Pleurosternidae | stated without evidence | Gilmore, 1916 | | Neurankylus | genus | belongs to Pleurosternidae | stated with evidence | Gilmore, 1919 | | Neurankylus | genus | belongs to Pleurosternidae | stated without evidence | Gilmore, 1935 | | Neurankylus | genus | belongs to Baenidae | stated with evidence | Gaffney, 1972 | | Neurankylus | genus | belongs to Neurankylidae | implied | Carroll, 1988 | | Neurankylus | genus | belongs to Selmacryptodira | stated without evidence | Sullivan et al., 1988 | | Neurankylus | genus | belongs to Baenidae | implied | Bryant, 1989 | | Neurankylus | genus | belongs to Neurankylinae | stated without evidence | Holroyd and Hutchison, 2002 | | Neurankylus | genus | belongs to Baenini | stated with evidence | Hutchison and Holroyd, 2003 | | Neurankylus | genus | belongs to Baenidae | stated with evidence | Joyce, 2007 | | Neurankylus | genus | belongs to Paracryptodira | stated with evidence | Anquetin et al., 2009 | | Neurankylus | genus | belongs to Baenidae | stated with evidence | Lyson and Joyce, 2010 | | Neurankylus | genus | belongs to Baenidae | stated without evidence | Sullivan et al., 2012 | | Neurankylus | genus | belongs to Neurankylinae | stated with evidence | Larson et al., 2013 | | Neurankylus | genus | belongs to Testudinata | stated without evidence | Perea et al., 2014 | | Neurankylus | genus | belongs to Baenidae | stated with evidence | Joyce and Lyson, 2015 | | Neurankylus | genus | belongs to Baenidae | stated without evidence | Panascí et al., 2019 |
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| Status (PBDB) | extinct |
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| Taxon Size (PBDB) | 8 |
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| First Recorded Appearance | 89.8 - 86.3 Ma
Late/Upper Cretaceous |
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| Last Recorded Appearance | 63.3 - 61.7 Ma
Paleocene |
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| Environment | terrestrial (based on Amniota) |
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| Motility | actively mobile (based on Osteichthyes) |
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| Taphonomy | phosphatic (based on Vertebrata) |
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| Primary Reference (PBDB) | L. M. Lambe. 1902. New genera and species from the Belly River Series (mid-Cretaceous). Geological Survey of Canada Contributions to Canadian Palaeontology 3(2):25-81 |
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| Wikipedia | https://en.wikipedia.org/wiki/Neurankylus |
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| Lambe L. M. (1902) New genera and species from the Belly River Series (mid-Cretaceous), Geological Survey of Canada Contributions to Canadian Palaeontology 3 2, 25-81 |
| Hay O. P. (1908) The fossil turtles of North America, Carnegie Institution of Washington Publication 75, 1-568 |
| Gilmore C. W. (1916) Contributions to the geology and paleontology of San Juan County, New Mexico. 2. Vertebrate faunas of the Ojo Alamo, Kirtland and Fruitland Formations, United States Geological Survey Professional Paper 98-Q, 279-302 |
| Gilmore C. W. (1919) New fossil turtles, with notes on two described species, Proceedings of the United States National Museum 56 2282, 113-132 |
| Gilmore C. W. (1935) On the Reptilia of the Kirtland Formation of New Mexico, with descriptions of new species of fossil turtles, Proceedings of the United States National Museum 83 2978, 159-188 |
| Gaffney E. S. (1972) The systematics of the North American family Baenidae (Reptilia, Cryptodira), Bulletin of the American Museum of Natural History 147 5, 245-312 |
| Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698 |
| Sullivan R. M., Lucas S. G., et al (1988) Color pattern on the selmacryptodiran turtle Neurankylus from the Early Paleocene (Puercan) of the San Juan Basin, New Mexico, Contributions in Science, Natural History Museum of Los Angeles County 401, 1-9 |
| Bryant L. J. (1989) Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana, University of California Publications in Geological Sciences 134, 1-107 |
| Holroyd P. A., Hutchison J. H. (2002) Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component, Geological Society of America Special Paper 361, 177-190 |
| Hutchison J. H., Holroyd P. A. (2003) Late Cretaceous and early Paleocene turtles of the Denver Basin, Colorado, Rocky Mountain Geology 38 1, 121-142 |
| Anquetin J., Barrett P. M., et al (2009) A new stem turtle from the Middle Jurassic of Scotland: new insights into the evolution and palaeoecology of basal turtles, Proceedings of the Royal Society B 276, 879-886 doi:10.1098/rspb.2008.1429 |
| Lyson T. R., Joyce W. G. (2010) A new baenid turtle from the Upper Cretaceous (Maastrichtian) Hell Creek Formation of North Dakota and a preliminary taxonomic review of Cretaceous Baenidae, Journal of Vertebrate Paleontology 30 2, 394-402 |
| Lyson T. R., Joyce W. G. (2011) Cranial anatomy and phylogenetic placement of the enigmatic turtle Compsemys victa Leidy, 1856, Journal of Paleontology 85 4, 789-801 doi:10.1666/10-081.1 |
| Anquetin J. (2012) Reassessment of the phylogenetic interrelationships of basal turtles (Testudinata), Journal of Systematic Palaeontology 10 1, 3-45 doi:10.1080/14772019.2011.558928 |
| Sullivan R. M., Jasinski S. E., et al (2012) Re-assessment of Late Campanian (Kirtlandian) turtles from the Upper Cretaceous Fruitland and Kirtland formations, San Juan Basin, New Mexico, USA, Morphology and Evolution of Turtles, 337-387 doi:10.1007/978-94-007-4309-0_20 |
| Hutchison J. H., Knell M. J., et al (2013) Turtles from the Kaiparowits Formation, Utah, At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah, 295-318 |
| Larson D. W., Longrich N. R., et al (2013) A new species of Neurankylus from the Milk River Formation (Cretaceous: Santonian) of Alberta, Canada, and a revision of the type species N. eximius, Morphology and Evolution of Turtles, 389-405 |
| Perea D., Soto M., et al (2014) Tacuarembemys kusterae, gen. et sp. nov., a new Late Jurassic-?earliest Cretaceous continental turtle from western Gondwana, Journal of Vertebrate Paleontology 34 6, 1329-1341 |
| Joyce W. G., Lyson T. R. (2015) A Review of the Fossil Record of Turtles of the Clade Baenidae, Bulletin of the Peabody Museum of Natural History 56 2, 147-183 doi:10.3374/014.056.0203 |
| Lichtig A. J., Lucas S. G. (2016) A new species of Neurankylus (Testudines: Baenidae) from the Upper Cretaceous Crevasse Canyon Formation, southern New Mexico, USA, New Mexico Museum of Natural History and Science Bulletin 74, 117-119 |
| Lively J. R. (2016) Baenid turtles of the Kaiparowits Formation (Upper Cretaceous: Campanian) of southern Utah, USA, Journal of Systematic Palaeontology 14 11, 891-918 doi:10.1080/14772019.2015.1120788 |
| Lyson T. R., Joyce W. G., et al (2016) A new baenid turtle from the early Paleocene (Torrejonian) of New Mexico and a species-level phylogenetic analysis of Baenidae, Journal of Paleontology doi:10.1017/jpa.2016.47 |
| Panascí G., Varricchio D. J., et al (2019) New occurrence of Neurankylus sp. (Testudines: Paracryptodiria: Baenidae) in the Upper Cretaceous Frontier Formation of south western Montana (USA), Cretaceous Research doi:10.1016/j.cretres.2019.104318 |
| NZ cross ref or inferred from publ. title - via The Interim Register of Marine and Nonmarine Genera |
| Nomenclator Zoologicus (authority adjusted) - via The Interim Register of Marine and Nonmarine Genera |
| Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera |
| GBIF/Yale University Peabody Museum: Peabody Paleoportal DiGIR Service (VP) - via The Interim Register of Marine and Nonmarine Genera |
| in Osborn & Lambe, Geol. Surv. Canad. Contr. Pal., 3, (2 - via The Interim Register of Marine and Nonmarine Genera |
Neurankylus ✝
