-
Orthoceratoidea is a
major subclass of
nautiloid cephalopods.
Members of this
subclass usually have
orthoconic (straight) to
slightly cyrtoconic (curved)...
- †Endoceratoidea = †Endocerida †
Orthoceratoidea = †Orthocerida, †Ascocerida, and †Pseudorthocerida (the
Orthoceratoidea of Kröger 2007)
Nautilitoidea =...
- as the Pseudorthocerida, and
elevating orthoceratid as the
Subclass Orthoceratoidea.
Shevyrev (2005)
suggested a
division into
eight subclasses, mostly...
-
several new
nautiloid superorders: Endoceratoidea, Multiceratoidea, and
Orthoceratoidea. The Ordovician-Tri****ic
Orthoceratoids are
ancestral to post-Paleozoic...
- a
broad in-group of
generally orthoconic cephalopods known as the
Orthoceratoidea (Kroger 2008)
along with the Ascocerida, Dissidocerida, Lituitida,...
-
Scientific classification Kingdom:
Animalia Phylum:
Mollusca class:
Cephalopoda Subclass:
Orthoceratoidea Order:
Orthocerida Family: Narthecoceratidae...
-
actively mobile aquatic carnivorous cephalopods belonging to the
subclass Orthoceratoidea endemic to what
would be Asia, Australia, Europe,
South America and...
- of the organisms' body organs.
Phragmocone Orthoceras Orthocerida Orthoceratoidea Baculites Flower,
Rousseau H. (1964). "Nautiloid s**** morphology"...
-
actively mobile aquatic carnivorous cephalopods belonging to the
subclass Orthoceratoidea endemic to what
would be Asia and
Europe during the
Silurian living...
- s****
shape and
dorsomyarian muscle scars are
similar to the
subclass Orthoceratoidea,
which are
ancestral to
ammonoids (ammonites) and
coleoids (squid,...
