Eurynotoides Explained

Eurynotoides is an extinct genus of prehistoric bony fish[1] in the family Eurynotoididae of the order Eurynotoidiformes.[2]

Taxonomy

The genus was erected by Berg in 1940. In 1974, Sergienko described a new genus and species Heterolepis multa from the Middle Permian (Kazanian) of Kemerovo Region, Russia, as a new member of the Palaeoniscidae family. Howerer, Heterolepis was already in use for the extant snake Heterolepis capensis (Smith, 1847), making Sergienko's naming a junior homonym. In 2023, A. S. Bakaev redescribed "Heterolepis" multa as a new species in the genus Eurynotoides, E. multa. This species is different from E. nanus and E. costatus by having ganoin peninsula-shaped structures on the anterior margin of the scale as well as by the presence of denticles on both posterior and lower edge of the scale.[2]

See also

External links

Notes and References

  1. Sepkoski . Jack . A compendium of fossil marine animal genera . Bulletins of American Paleontology . 364 . 560 . 2002 . 2009-02-27 . dead . https://web.archive.org/web/20110723131237/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class . July 23, 2011 .
  2. A. S. Bakaev. 2023. Revision of Permian Ray-Finned Fishes from the Kazankovo-Markino Formation of the Kuznetsk Basin. Paleontological Journal. 57. 3. 335-342. 10.1134/S0031030123030036. https://web.archive.org/web/20230708190243/https://www.researchgate.net/publication/372079651_Revision_of_Permian_Ray-Finned_Fishes_from_the_Kazankovo-Markino_Formation_of_the_Kuznetsk_Basin. July 8, 2023. live.