-
Orthocerida, from
Ancient Gr**** ὀρθός (orthós),
meaning "straight", and κέρας (kéras),
meaning "horn", also
known as the Michelinocerida, is an order...
- †Ellesmerocerida. †Endoceratoidea = †Endocerida †Orthoceratoidea = †
Orthocerida, †Ascocerida, and †Pseudorthocerida (the
Orthoceratoidea of Kröger 2007)...
- Dissidocerida, Actinocerida, Pseudorthocerida,
Lituitida and
Orthocerida.
Orthocerida is a
noteworthy paraphyletic order which is
ancestral to the major...
- & Co.,
Garden City, New York Sweet,
Walter C. (1964),
Nautiloidea --
Orthocerida, in
Treatise on
Invertebrate Paleontology. Part K.
Mollusca 3, Geological...
-
organic deposits,
unlike orthoceratoid cephalopod orders such as the
Orthocerida and Actinocerida.
Endocerids reached enormous body sizes. The largest...
- In geology, the
Arenig (or Arenigian) is a time
interval during the
Ordovician period and also the
suite of
rocks which were
deposited during this interval...
- the
Belemnoidea (Coleoidea). The
Bactritida have
their origin in the
Orthocerida,
nautiloid cephalopods that
first appeared in the Ordovician. Bactroceras...
- mono-generic,
family of
extinct orthoceratoid cephalopods in the
order Orthocerida that
lived in what
would be
Europe during the
middle Silurian from 428...
- (Kroger 2008)
along with the Ascocerida, Dissidocerida, Lituitida, and
Orthocerida. The
Pseudorthocerida were
among the last
living orthoconic nautiloids...
- long straight-s****ed
cephalopods like the long
lasting and
diverse Orthocerida).
Early corals,
articulate brachiopods (Orthida, Strophomenida, etc.)...
