Amylodon

Amylodon is an extinct genus of chimaera. It consists of four described species. A. karamysh is known from the latest early Campanian of Russia, the name being derived from the Karamysh River which runs near the type locality. In the Eocene, two species are known. A. venablesae and A. eocenica are both known from the Ypresian-aged London Clay of England. A mandibular plate originally ascribed to the latter was found in the Bartonian of the Barton Beds of England, though later found not to fit with any described species. A. delheidi is known from the Rupelian-aged Boom Clay of Belgium. All species are known mainly from isolated mandibles. They show a slow progressing towards increased shearing ability. ^[1][2] Amylodon was considered to be a member of Chimaeridae in Nessov and Averianov, 1996^[3] but other studies have either been assigned to the "Edaphodontidae", or to the Rhinochimaeridae.^[4]

Amylodon Temporal range: Campanian– Rupelian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	Chimaeriformes
Genus:	Amylodon Storms, 1895
Species
Amylodon eocenica Amylodon delheidi Amylodon venablesae Amylodon karamysh

References

1. Ganodus, C. (1995). A new species of chimaeroid fish from the Upper Cretaceous of the Saratov region, Russia. Palaeontology, 38(Part 3), 659-664.
2. Ward, D. J. (1973). The English Palaeogene chimaeroid fishes. Proceedings of the Geologists' Association, 84(3), 315-330.
3. Averianov, A. O., and E. V. Popov. 1995. A new species of chimaeroid fish from the Upper Cretaceous of the Saratov region, Russia. Palaeontology 38:659–664.
4. Popov, Evgeny V.; Johns, Marjorie J.; Suntok, Stephen (2020-01-02). "A New Genus of Chimaerid Fish (Holocephali, Chimaeridae) from the Upper Oligocene Sooke Formation of British Columbia, Canada". Journal of Vertebrate Paleontology. 40 (1): e1772275. doi:10.1080/02724634.2020.1772275. ISSN 0272-4634. S2CID 221751740.