Clinoceratidae

Clinoceratidae Temporal range: Ordovician
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Orthoceratoidea
Order:	Orthocerida
Family:	Clinoceratidae Flower (1946)

Clinoceratidae is an extinct family of actively mobile carnivorous cephalopod of the order Orthocerida that lived in what would be North America and Europe during the middle Ordovician through early Silurian from 466–443.7 mya, existing for approximately 22.3 million years.

Clinoceratidae was named by Flower (1946). Its type is Clinoceras. It was assigned to Michelinoceratida by Flower (1962).

The shell is usually long, and may be straight ("orthoconic") or gently curved. In life, these animals may have been similar to the modern squid, except for the long shell.

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