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"Crocodylus" affinis

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"Crocodylus" affinis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauromorpha
Clade: Archosauriformes
Order: Crocodilia
Superfamily: Crocodyloidea
Species: "Crocodylus" affinis
Marsh, 1871
Binomial name
Crocodylus affinis
Synonyms
The holotype skull of "Crocodylus" affinis (AMNH 6177) on display in the American Museum of Natural History

"Crocodylus" affinis is an extinct species of crocodyloid from the Eocene of Wyoming. Fossils were first described from the Bridger Formation by American paleontologist Othniel Charles Marsh in 1871. Marsh described the species, along with every other species of crocodyloid in the Bridger Formation, under the genus Crocodylus.[1] Recent phylogenetic studies of crocodyloids show that "C." affinis is not a species of Crocodylus, but a genus has not yet been erected to include the species. Other Bridger species such as Crocodylus clavis and Brachyuranochampsa zangerli have been synonymized with "C." affinis.[2][3]

References

  1. ^ Mook, C.C. (1921). "Description of a skull of a Bridger crocodilian" (PDF). Bulletin of the American Museum of Natural History. 44 (11): 111–116.
  2. ^ de Buffrenil, V.; Buffetaut, E. (1981). "Skeletal growth lines in an Eocene crocodilian skull from Wyoming as an indicator of ontogenic age and paleoclimatic conditions". Journal of Vertebrate Paleontology. 1 (1): 57–65. doi:10.1080/02724634.1981.10011879.
  3. ^ Brochu, C. A. (2000). "Phylogenetic relationships and divergence timing of Crocodylus based on morphology and the fossil record". Copeia. 2000 (3): 657–673. doi:10.1643/0045-8511(2000)000[0657:pradto]2.0.co;2.