Explore relationships

Orthocerid

Orthocerida, from Ancient Greek ὀρθός (orthós), meaning "straight", and κέρας (kéras), meaning "horn", also known as the Michelinocerida, is an order of extinct orthoceratoidcephalopods that lived from the Early Ordovician to the Late Permian.

Use + to expand a branch. Click a topic name to open its summary.