Ankistrorhynchus

Ankistrorhynchus is an extinct genus of sclerorhynchoid from the Cretaceous Period. It is known only isolated rostral teeth from two species. A. lonzeensis is named for its type locality of Lonzée, Belgium. It is from the lower Santonian stage.^[1] A. washakiensis was described from the Campanian-aged Mesaverde Formation of Wyoming, USA. ^[2] The species A. major was named from Campanian/Santonian of New Jersey, USA off of fragmentary material, thus making its validity questionable.^[3]

Ankistrorhynchus Temporal range: Santonian– Campanian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Rajiformes
Suborder:	†Sclerorhynchoidei
Genus:	†Ankistrorhynchus Casier, 1964
Species
Ankistrorhynchus lonzeensis Ankistrorhynchus major Ankistrorhynchus washakiensis