Ptychodontidae

Ptychodontidae Fossil range: Cretaceous–Paleogene PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Superorder:	Selachimorpha
Family:	Ptychodontidae
Genera:	Ptychodus

Ptychodontidae is an extinct family of elasmobranchii which lived from the Cretaceous to the Paleogene.

References