Eorhincodon

Eorhincodon
Temporal range: Late Eocene
Archaeolamna and E.tianshanensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Carcharhiniformes
Family: Carcharhinidae
Genus: Eorhincodon
Li, 1997[1]
Species:
E. tianshanensis
Binomial name
Eorhincodon tianshanensis
Li, 1997

Eorhincodon is an invalid genus of requiem shark[2] from the Late Eocene of Xinjiang, China, originally described as a whale shark.[1] It is currently considered a junior synonym of Rhizoprionodon.[3] The genus was originally erected by Li (1997) to include the species Eorhincodon tianshanensis, but Nessov (1999) used the preoccupied genus in a different paleontological context to include an unrelated species, E. casei, from Late Cretaceous Russian marine strata. A new genus, Pseudomegachasma, was erected in 2015 for E. casei to be transferred into.[4]

References

[edit]
  1. ^ a b Li, G.-Q. (1997) Elasmobranchs from the Lower Tertiary of the western Tarim Basin, China, and their biostratigraphic significance. Palaeoworld, 7: 107-136, 13 fig., 2 tabl. [1]
  2. ^ "Extinct - complete list | Species | Shark-References".
  3. ^ Cappetta, H. (2012). Handbook of Paleoichthyology. Volume 3E. Chondrichthyes. Mesozoic and Cenozoic Elasmobranchii: Teeth. Munich: Verlag Dr. Friedrich Pfeil. ISBN 978-3-89937-148-2.
  4. ^ Shimada, Kenshu, et al. "A new clade of putative plankton-feeding sharks from the Upper Cretaceous of Russia and the United States." Journal of Vertebrate Paleontology 35.5 (2015): e981335. [2]