- Wutinoceras.
Ormoceras gave rise to
Deiroceras early on
during the
Mohawkian (Middle Ordovician) and
slightly later to Troedssonoceras.
Ormoceras also gave...
- of the
family Wutinoceratidae, with
spheroidal siphuncle segments like
Ormoceras, but
having a
reticular canal system like Wutinoceras.
Adamsoceras has...
-
narrower in the
later stages of the
chambered phragmocone like
those in
Ormoceras. As with
Kochoceras and Floweroceras,
Paractinoceras is
considered a separate...
- litres.
Ormoceras TUG 1308-1 1.72 m (estimate) Klug et al. (2015:270) From the
Sandbian of Estonia. S****
volume estimated at 2.7 litres.
Ormoceras giganteum...
- where, in Korea, it is ****ociated with the actinocerids, Armenoceras,
Ormoceras, and Selkirkoceras.
Paleontology portal Marine life
portal List of nautiloids...
-
starts off like that in Actinoceras, but
becomes narrow like that in
Ormoceras in the
anterior part of the phragmocone.
Kochoceras has a
large blunt...
- †Oonoceras †Ophidioceras †Ophioceras †Ophionautilus †Oratoceras †Ordosoceras †
Ormoceras †Orthoceras †Orthocycloceras †Orthonybyoceras †Osbornoceras †Ovoceras...
- comb. nov
Valid Niko & Sone
Ordovician Malaysia Myanmar A
member of Pseudorthoceratidae; a new
genus for "
Ormoceras"
langkawiense Kobayashi (1959)....
-
composed of
segments that are
expanded into the chambers, more so than in
Ormoceras or
Lambeoceras but not as much as in Armenoceras. (Flower 1957) The diameter...
-
account of the
siphon of
Actinoceras and the
foundation of the
genus Ormoceras. The many
curious researches concerning the
Orthoceratites that have interested...
