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'''''Corosaurus''''' is an [[extinct]] [[genus]] of [[pistosauroid]] known from [[Wyoming]] of the United States.<ref name=Corosaurus>{{cite journal |authors=Ermine Cowles Case |year=1936 |title=A nothosaur from the Triassic of Wyoming |journal= University of Michigan Contributions from the Museum of Paleontology |volume=5 |issue=1 |pages=1–36 }}</ref><ref name=Corosaurus-phylo>{{cite journal |authors=Olivier Rieppel |year=1998 |title=''Corosaurus alcovensis'' Case and the phylogenetic interrelationships of Triassic stem-group Sauropterygia |journal=Zoological Journal of the Linnean Society |volume=124 |issue=1 |pages=1–41 |doi=10.1111/j.1096-3642.1998.tb00568.x |doi-access=free }}</ref>
'''''Corosaurus''''' is an [[extinct]] [[genus]] of [[pistosauroid]] known from [[Wyoming]] of the United States.<ref name=Corosaurus>{{cite journal |authors=Ermine Cowles Case |year=1936 |title=A nothosaur from the Triassic of Wyoming |journal= University of Michigan Contributions from the Museum of Paleontology |volume=5 |issue=1 |pages=1–36 }}</ref><ref name=Corosaurus-phylo>{{cite journal |authors=Olivier Rieppel |year=1998 |title=''Corosaurus alcovensis'' Case and the phylogenetic interrelationships of Triassic stem-group Sauropterygia |journal=Zoological Journal of the Linnean Society |volume=124 |issue=1 |pages=1–41 |doi=10.1111/j.1096-3642.1998.tb00568.x |doi-access=free }}</ref> It measured about {{cvt|1.65|m|ft}} long.<ref>{{cite journal |last1=Scheyer |first1=Torsten M. |last2=Romano |first2=Carlo |last3=Jenks |first3=Jim |last4=Bucher |first4=Hugo |title=Early Triassic Marine Biotic Recovery: The Predators' Perspective |journal=PLOS ONE |date=19 March 2014 |volume=9 |issue=3 |pages=e88987 |doi=10.1371/journal.pone.0088987 |pmid=24647136 |pmc=3960099 |bibcode=2014PLoSO...988987S |doi-access=free }}</ref>


==History of discovery==
==History of discovery==

Revision as of 08:13, 18 January 2023

Corosaurus
Temporal range: Early Triassic, 247.4–245 Ma
Corosaurus (12) and other Early Triassic marine predators
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Clade: Pistosauroidea
Family: Corosauridae
Kuhn, 1961
Genus: Corosaurus
Case, 1936
Species:
C. alcovensis
Binomial name
Corosaurus alcovensis
Case, 1936

Corosaurus is an extinct genus of pistosauroid known from Wyoming of the United States.[1][2] It measured about 1.65 m (5.4 ft) long.[3]

History of discovery

Corosaurus is known from the holotype UW 5485, a partial skeleton which includes the skull.[1] Later, the referred specimens YPM 41030-41068, FMNH PR 135, FMNH PR 1368-1369, FMNH PR 242-246 and FMNH PR 1382-1383 were described by Glenn William Storrs in 1991. All specimens were collected in Jackson Canyon, Natrona County, from the Chugwater Group of the Alcova Limestone Formation, dating to the late Olenekian stage of the late Early Triassic, about 247.4-245 million years ago.[4]

Etymology

Corosaurus was first named by Ermine Cowles Case in 1936 and the type species is Corosaurus alcovensis. The specific name is derived from the name of the Alcova Limestone Formation, in which the holotype was found.[1]

Classification

Corosaurus was placed in its own family, Corosauridae, which named by Oskar Kuhn, in 1961.[4] After a revision of the holotype and referred material of Corosaurus, Olivier Rieppel found Corosaurus to be the sister-taxon to a clade comprising Cymatosaurus, Pistosaurus and Plesiosauria.[2]

References

  1. ^ a b c "A nothosaur from the Triassic of Wyoming". University of Michigan Contributions from the Museum of Paleontology. 5 (1): 1–36. 1936. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  2. ^ a b "Corosaurus alcovensis Case and the phylogenetic interrelationships of Triassic stem-group Sauropterygia". Zoological Journal of the Linnean Society. 124 (1): 1–41. 1998. doi:10.1111/j.1096-3642.1998.tb00568.x. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  3. ^ Scheyer, Torsten M.; Romano, Carlo; Jenks, Jim; Bucher, Hugo (19 March 2014). "Early Triassic Marine Biotic Recovery: The Predators' Perspective". PLOS ONE. 9 (3): e88987. Bibcode:2014PLoSO...988987S. doi:10.1371/journal.pone.0088987. PMC 3960099. PMID 24647136.
  4. ^ a b "Anatomy and Relationships of Corosaurus alcovensis (Diapsida: Sauropterygia) and the Triassic Alcova Limestone of Wyoming". Bulletin of the Peabody Museum of Natural History Yale University. 44: 1–151. 1991. {{cite journal}}: Cite uses deprecated parameter |authors= (help)