Class Cephalopoda

Order Ammonoidea Zittel, 1884

Suborder Ancyloceratina

Superfamily Ancylocerataceae

Family Ancyloceratidae

Subfamily Ancyloceratinae

Genus Ancyloceras

Ancyloceras bendirei
Ancyloceras jenneyi
Ancyloceras tricostatus

Subfamily Crioceratitinae

Genus Aegocrioceras

Aegocrioceras capricorni

Subfamily Helicancylinae

Genus Acrioceras

Acrioceras voyanum

Genus Hoplocrioceras

Hoplocrioceras remondi
Hoplocrioceras stadtlaender