| Description | Compsemys victa is a species of prehistoric turtles from the Late Cretaceous and Paleocene of North America. Although several species have been described, they are all considered synonyms of one species, C. victa, first described by Joseph Leidy in 1856. Its familial affinities were long considered uncertain, with one author favoring Dermatemydidae, but recent study has placed it in its own family, Compsemydidae, within Paracryptodira.
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| Source Data | |
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| Rank | genus |
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| Taxonomy (GBIF) | Life : Animalia : Chordata : Reptilia : Testudines : Compsemydidae : Compsemys |
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| Taxonomy (PBDB) | Life : Animalia : Chordata : Reptilia : Testudines : Compsemys |
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| Taxonomic Status (GBIF) | accepted |
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Classification
(PBDB,GBIF) | |
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| Scientific Name | Compsemys Leidy, 1857 |
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| Name Published In | Proc. Acad. Nat. Sci. Philad., 8 |
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| Opinions (PBDB) | | Name | Rank | Opinion | Evidence | Author |
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| Compsemys | genus | belongs to Chelonia | stated without evidence | Leidy, 1860 | | Compsemys | genus | belongs to Emydidae | stated without evidence | Cope, 1884 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Hay, 1902 | | Compsemys | genus | belongs to Dermatemydidae | stated with evidence | Hay, 1908 | | Compsemys | genus | belongs to Dermatemydidae | stated without evidence | Estes and Berberian, 1970 | | Compsemys | genus | belongs to Baenidae | stated with evidence | Gaffney, 1972 | | Compsemys | genus | belongs to Baenidae | stated without evidence | Estes, 1976 | | Compsemys | genus | belongs to Neurankylidae | implied | Carroll, 1988 | | Compsemys | genus | belongs to Cryptodira | implied | Bryant, 1989 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Holroyd and Hutchison, 2002 | | Compsemys | genus | belongs to Pleurosternidae | stated with evidence | Hutchison and Holroyd, 2003 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Milner, 2004 | | Compsemys | genus | belongs to Dermatemydidae | stated without evidence | Burger, 2007 | | Compsemys | genus | belongs to Paracryptodira | stated with evidence | Lyson and Joyce, 2011 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Joyce et al., 2011 | | Compsemys | genus | belongs to Paracryptodira | stated with evidence | PĂ©rez-GarcĂa, 2012 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Karl et al., 2012 | | Compsemys | genus | belongs to Compsemydidae | stated with evidence | PĂ©rez-GarcĂa et al., 2015 | | Compsemys | genus | belongs to Pleurosternidae | stated without evidence | Lichtig and Lucas, 2015 | | Compsemys | genus | belongs to Compsemydidae | stated with evidence | LĂłpez-Conde et al., 2018 | | Compsemys | genus | belongs to Paracryptodira | stated with evidence | Joyce and Anquetin, 2019 |
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| Status (PBDB) | extinct |
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| Taxon Size (PBDB) | 3 |
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| First Recorded Appearance | 85.8 - 83.5 Ma
Late/Upper Cretaceous |
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| Last Recorded Appearance | 56.8 - 55.8 Ma
Paleogene |
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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) | J. Leidy. 1856. Notices of Extinct Vertebrata Discovered by Dr. F. V. Hayden, during the Expedition to the Sioux Country under the Command of Lieut. G. K. Warren. Proceedings of the Academy of Natural Sciences of Philadelphia 8:311-312 |
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| Wikipedia | https://en.wikipedia.org/wiki/Compsemys |
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| Leidy J. Notices of Extinct Vertebrata Discovered by Dr. F. V. Hayden, during the Expedition to the Sioux Country under the Command of Lieut. G. K. Warren, Proceedings of the Academy of Natural Sciences of Philadelphia 8, 311-312 |
| Leidy J. Extinct vertebrates from the Judith River and Great Lignite Formations of Nebraska, Transactions of the American Philosophical Society 11, 139-154 |
| Cope E. D. Testudinata, The Vertebrata of the Tertiary formations of the West. In: Report of the United States Geological Survey of the Territories 3, 111-150 |
| Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179, 1-868 |
| Hay O. P. (1908) The fossil turtles of North America, Carnegie Institution of Washington Publication 75, 1-568 |
| Estes R. (1964) Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming, University of California Publications in Geological Sciences 49, 1-187 |
| Estes R., Berberian P. (1970) Paleoecology of a Late Cretaceous vertebrate community from Montana, Breviora 343, 1-35 |
| 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 |
| Estes R. (1976) Middle Paleocene lower vertebrates from the Tongue River Formation, southeastern Montana, Journal of Paleontology 50 3, 500-520 |
| Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698 |
| 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 |
| Milner A. R. (2004) The turtles of the Purbeck Limestone Group of Dorset, southern England, Palaeontology 47 6, 1441-1467 doi:10.1111/j.0031-0239.2004.00418.x |
| Burger B. J. (2007) A New Late Paleocene Vertebrate Fauna from the Ohio Creek Formation of Western Colorado, Mountain Geologist 44 3, 141-150 |
| Joyce W. G., Chapman S. D., et al (2011) The skull of the solemydid turtle Helochelydra nopcsai from the Early Cretaceous of the Isle of Wight (UK) and a review of Solemydidae, Special Papers in Palaeontology 86, 75-97 |
| 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 |
| Karl H.-V., et al (2012) Ballerstedtia bueckebergensis, a new turtle from the Early Cretaceous Wealden facies of Germany (Testudines: Pleurosternidae), Studia Palaeocheloniologica 4, 47-60 |
| PĂ©rez-GarcĂa A. (2012) Berruchelus russelli, gen. et sp. nov., a paracryptodiran turtle from the Cenozoic of Europe, Journal of Vertebrate Paleontology 32 3, 545-556 |
| 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 |
| Lichtig A. J., Lucas S. G. (2015) Paleocene-Eocene turtles of the Piceance Creek Basin, Colorado, New Mexico Museum of Natural History and Science Bulletin 67, 145-152 |
| PĂ©rez-GarcĂa A., Royo-Torres R., et al (2015) A new European Late Jurassic pleurosternid (Testudines, Paracryptodira) and a new hypothesis of paracryptodiran phylogeny, Journal of Systematic Palaeontology 13 4, 351-369 doi:http://dx.doi.org/10.1080/14772019.2014.911212 |
| LĂłpez-Conde O. A., Sterli J., et al (2018) Turtles from the Late Cretaceous (Campanian) of El Gallo Formation, Baja California, Mexico, South American Journal of Earth Sciences 88, 693-699 doi:10.1016/ j.jsames.2018.10.005 |
| Joyce W. G., Anquetin J. (2019) A review of the fossil record of non-baenid turtles of the clade Paracryptodira, Bulletin of the Peabody Museum of Natural History 60 2, 129-155 |
| GBIF/Paleo Database - 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 |
| Proc. Acad. Nat. Sci. Philad., 8 - via The Interim Register of Marine and Nonmarine Genera |
| as per family - via The Interim Register of Marine and Nonmarine Genera |
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