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Crosbysaurus

Description

Crosbysaurus is a genus of extinct archosauromorph that lived in the Late Triassic of Arizona, New Mexico, North Carolina, Texas, and Utah. It is known from the Chinle Formation and Dockum Group rock units from the southwestern United States. The type species is C. harrisae, and the only known material includes teeth. 11 specimens are known, each including a single tooth.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4823094https://www.gbif.org/species/4823094
PaleoBioDB ID (PBDB)69053https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=69053
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crosbysaurus
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Crosbysaurus
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SauropsidaHuxley 1864
classReptiliaLaurenti 1768
subclassEureptilia
-RomeriidaGauthier et al. 1988
-Diapsida
-Eosuchia
-NeodiapsidaBenton 1985
-SauriaGauthier 1984
-Archosauromorpha
-CrocopodaEzcurra 2016
-ArchosauriformesGauthier 1986
genusCrosbysaurusHeckert 2004
Scientific NameCrosbysaurus Heckert, 2004
Name Published InBulletin of the New Mexico Museum of Natural History and Science 27
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Crosbysaurusgenusbelongs to Ornithischiastated without evidenceHeckert, 2004
Crosbysaurusgenusbelongs to Archosauriastated with evidenceParker, 2005
Crosbysaurusgenusbelongs to ArchosauriformesimpliedIrmis, 2005
Crosbysaurusgenusbelongs to Ornithischiastated without evidenceHeckert and Lucas, 2006
Crosbysaurusgenusbelongs to Archosauriformesstated with evidenceIrmis et al., 2007
Crosbysaurusgenusbelongs to Archosauriformesstated without evidenceNesbitt et al., 2007
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance237 - 209 Ma
Late/Upper Triassic
Last Recorded Appearance228 - 201 Ma
Mesozoic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)A. B. Heckert. 2004. Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A. New Mexico Museum of Natural History and Science Bulletin 27:1-170
Wikipediahttps://en.wikipedia.org/wiki/Crosbysaurus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Crosbysaurus harrisae
species
accepted (GBIF)
listed (PBDB)
7228 Ma
Late/Upper Triassic
228 Ma
Late/Upper Triassic

Synonymy List

YearName and Author
2004Crosbysaurus Heckert p. 66
2005Crosbysaurus Irmis p. 71
2005Crosbysaurus Parker p. 43
2006Crosbysaurus Heckert and Lucas p. 100
2007Crosbysaurus Irmis et al. p. 7
2007Crosbysaurus Nesbitt et al. p. 230

References

Heckert A. B. (2004) Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A., New Mexico Museum of Natural History and Science Bulletin 27, 1-170
Irmis R. B. (2005) The vertebrate fauna of the Upper Triassic Chinle Formation in northern Arizona, In S. J. Nesbitt, W. G. Parker, & R. B. Irmis (eds.), Guidebook to the Triassic Formations of the Colorado Plateau in Northern Arizona: Geology, Paleontology, and History. Mesa Southwest Museum Bulletin 9, 63-88
Parker W. G. (2005) Faunal review of the Upper Triassic Chinle Formation of Arizona, Vertebrate Paleontology of Arizona, Mesa Southwest Museum Bulletin 11, 34-54
Heckert A. B., Lucas S. G. (2006) Micro- and small vertebrate biostratigraphy and biochronology of the Upper Triassic Chinle Group, southwestern USA, The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37, 94-104
Irmis R. B., Parker W. G., et al (2007) Early ornithischian dinosaurs: the Triassic record, Historical Biology 19 1, 3-22 doi:10.1080/08912960600719988
Nesbitt S. J., Irmis R. B., et al (2007) A critical re-evaluation of the Late Triassic dinosaur taxa of North America, Journal of Systematic Palaeontology 5 2, 209-243
as per family - via The Interim Register of Marine and Nonmarine Genera
original work/web search - via The Interim Register of Marine and Nonmarine Genera
Heckert, 2004 (to be verified) - via The Interim Register of Marine and Nonmarine Genera
Bulletin of the New Mexico Museum of Natural History and Science 27 - via The Interim Register of Marine and Nonmarine Genera
Heckert, A.B. (2004). Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A. Bulletin of the New Mexico Museum of Natural History and Science, 27, 1-170 - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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