belemnites are a monophyletic group of superorder status, called the Belemnoidea. There are four orders. The belemnites evolved from nautiloids, which...

important extinct taxa are the ammonites, and the belemnites (order Belemnoidea, of class Coleoidea). Cephalopods are found in all the oceans of the...

Mollusca Class: Cephalopoda Subclass: Coleoidea Bather, 1888 Orders †Belemnoidea (certain fossil cephalopods) Neocoleoidea (most living cephalopods)...