| Eorhincodon Temporal range: Late Eocene | |
|---|---|
| |
| Archaeolamna and E.tianshanensis | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Carcharhiniformes |
| Family: | Carcharhinidae |
| Genus: | †Eorhincodon Li, 1997 |
| Species: | †E. tianshanensis |
| Binomial name | |
| †Eorhincodon tianshanensis Li, 1997 | |
Eorhincodon is an invalid genus of requiem shark from the Late Eocene of Xinjiang, China, originally described as a whale shark. It is currently considered a junior synonym of Rhizoprionodon. 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.
References
- ^ 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.
- "Extinct - complete list | Species | Shark-References".
- 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.
- 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.
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