Protoscaphirhynchus

Protoscaphirhynchus squamosus is an extinct sturgeon from the Late Cretaceous of North America. It is known from a single poorly preserved specimen found in the Maastrichtian aged Hell Creek Formation in Montana. Due to its poor preservational state, it has few diagnostic characters.^[1]

Protoscaphirhynchus Temporal range: Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Acipenseriformes
Family:	Acipenseridae
Genus:	†Protoscaphirhynchus Wilimovsky, 1956
Species:	†P. squamosus
Binomial name
†Protoscaphirhynchus squamosus Wilimovsky, 1956

See also

• Prehistoric fish
• List of prehistoric bony fish