Agoniatites

Agoniatites Temporal range: Middle Devonian PreꞒ Ꞓ O S D C P T J K Pg N

Agoniatites obliquus, from Srbsko, Czech Republic, at the National Museum (Prague)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Agoniatitida
Family:	Agoniatitidae
Genus:	Agoniatites Meek (1877)

Agoniatites is a genus of primitive ammonoids belonging to the order Agoniatitida family Agoniatitidae.

Species of this genus were fast-moving nektonic carnivore shelled ammonoids. They lived in the Eifelian and Givetian ages of the middle Devonian period, which occurred 385.3-397.5 million years ago.

Vanuxemi agoniatites is a rare species in this group which is the only ammonoid found in the Hamilton Group (Mahantango Formation) in Pennsylvania and New York.

Fossil distribution

Devonian of Algeria, Canada (Northwest Territories), the Czech Republic, Morocco, Russia, United States (Alaska, Nevada, New York, Pennsylvania)

Species

Agoniatites annulatus
Agoniatites bicanaliculatus
Agoniatites costulatus
Agoniatites kayseri Wedekind
Agoniatites nodiferus Hall
Agoniatites obliquus Whidborne
Agoniatites occultus
Agoniatites vanuxemi

Gallery

Agoniatites nodiferus
Agoniatites vanuxemi (Fossil discovered by Michael Tomczyk at a 385 million year old Devonian formation near Deer Lake, Pennsylvania in 2013)