Ptychodontidae

Ptychodontidae
Temporal range: 99.6–61.7 Ma

Cretaceous to Paleogene

Ptychodus janewayii teeth (bottom row) from Cope 1874
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Hybodontiformes
Superfamily: Hybodontoidea
Family: Ptychodontidae
Genera

Ptychodontidae is a family of extinct hybodontiform sharks which lived from the Cretaceous to the Paleogene.[1]

References


This article is issued from Wikipedia - version of the 5/1/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.