Ptycholepis

Ptycholepis
Ptycholepis bollensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclass: Osteichthyes
Class: Actinopterygii
Family: Ptycholepididae
Genus: Ptycholepis
Agassiz 1843
Species

P. avus
P. barboi
P. bollensis
P. curtus
P. gracilis
P. magnus
P. minor
P. monilifer
P. priscus
P. schaefferi

Ptycholepis is an extinct genus of prehistoric bony fish [1] having the head and opercular bones ornamented with ridges of ganoin, minute teeth, and thick scales (which are much longer than deep and are grooved longitudinally on the outer side).[2]

See also

Wikimedia Commons has media related to Ptycholepis.

References

  1. ↑ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology 364: 560. Retrieved 2009-02-27.
  2. ↑ "Definition of Ptycholepis". Century Dictionary. Wordnik. Retrieved 5 March 2011.


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