Goniatite

Goniatite Temporal range: 390–251.4 Ma PreꞒ Ꞓ O S D C P T J K Pg N Middle Devonian – Late Permian
A polished goniatite fossil
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Goniatitida Hyatt, 1884
Suborders
Goniatitina Tornoceratina

Goniatids, informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago (around Eifelian stage). Goniatites (goniatitids) survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct at the end of the Permian some 139 million years later.