- 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 s****,
divided into...
-
resulting in large, long camarae. In
others such as the Ellesmerocerida,
Oncocerida and
Discosorida the
septa are
crowded closely together. In some straight-s****ed...
-
Oncoceratidae is a
family of
nauatiloid cephalopods in the
order Oncocerida established by Hyatt, 1884, that
range from the
Middle Ordovician to the Upper...
-
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...
- 2013,
Multiceratoidea included four
nautiloid orders: Ellesmerocerida,
Oncocerida, Discosorida, and Ascocerida. The
order Tarphycerida was
considered a...
-
nautiloid cephalopods from the
Middle and
Upper Ordovician belonging to the
Oncocerida,
characterized by
exogastric cyrtocones that
expand slightly or moderately...
-
Zittelloceras is an
extinct genus of
nautiloids from the
order Oncocerida which are
among a
large group of once
diverse and
numerous s****ed cephalopods...
-
subclass Nautiloidea,
comprising the
phylogenetically related Nautilida,
Oncocerida, and Tarphycerida. The
superorder has its
roots in the B****leroceratidae...
-
Valhalloceras floweri Evans and King 1990.
Valhalloceras is ****igned to the
Oncocerida, it and the
related genus Phthanoncoceras are
united in the
family Phthanoncoceratidae...
