Pseudorthocerataceae

Pseudorthocerataceae
Temporal range: Ordovician
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
Order:
Superfamily:
Pseudorthocerataceae

Sweet (1964)

Pseudorthocerataceae is an extinct superfamily of actively mobile carnivorous cephalopod, essentially a Nautiloid, that lived in what would be North America, Europe, Australia, and Asia during the Ordovician from 490—445.6 mya, existing for approximately 44.4 million years.[1]