Ancyrognathus

Ancyrognathus is an extinct genus of conodonts.

Ancyrognathus Temporal range: Late Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Conodonta
Genus:	†Ancyrognathus Branson and Mehl, 1934[1]
Species
†Ancyrognathus primus †Ancymgnathus symmetries (type) †Ancyrognathus triangularis

During the Famennian stage of the Late Devonian, a biologic event occurred (Upper Kellwasser Extinction of all Ancyrodella and Ozarkodina and most Palmatolepis, Polygnathus and Ancyrognathus).