The Oncocerida comprise a diverse group of generally small nautiloid cephalopods known from the Middle Ordovician to the Mississippian (early Carboniferous;...

somewhat variable between authors, but it usually includes Tarphycerida, Oncocerida, and Nautilida. All nautiloids have a large external shell, divided into...

Pseudorthocerida (432 to 272 Ma) Order † Tarphycerida (485 to 386 Ma) Order † Oncocerida (478.5 to 324 Ma) Order Nautilida (extant; 410.5 Ma to present) Order...

resulting in large, long camarae. In others such as the Ellesmerocerida, Oncocerida and Discosorida the septa are crowded closely together. In some straight-shelled...

Grimsbyoceras is a nautiloid genus included in the Oncocerida order of the family Acleistoceratidae that lived during the Middle Devonian. They have been...

Megaloceras is a genus of the nautiloid order Oncocerida that lived during the Silurian period of the Paleozoic. It is included in the family Karoceratidae...

2013, Multiceratoidea included four nautiloid orders: Ellesmerocerida, Oncocerida, Discosorida, and Ascocerida. The order Tarphycerida was considered a...

Ellesmerocerida Orthocones: Endocerida, Orthocerida, Actinocerida Brevicones: Ascocerida, Oncocerida Earliest coiled cephalopods: Tarphycerida Spirulid?: Shimanskya...

taxonomies (Manda & Turek, 2009) the Rutoceratidae are included in the Oncocerida rather than in the Nautilida The name has been mis-spelt as Capriocornites...

early schemes. Both Shimansky and Kummel derive the Nautilida from the Oncocerida with either the Acleistoceratidae or Brevicoceratidae (Teichert 1988)...