Strophiceras
Encyclopedia
Strophiceras is an extinct cephalopod genus from the Order Nautilida
, which includes, in a separate family, Nautilus
and Allonautilus
.
Strophioceras, a gyrogonic form that comes from the Middle Devonian
of Europe and named by Hyatt in 1844 is part of the Trigonoceratacean family Centroceratidae
which was extant from the Devonian to the Early Permian
. (Kummel 1954. Flower 1950)
Nautilida
The Nautilida constitute a large and diverse order of generally coiled nautiloid cephalopods that began in the mid Paleozoic and continues to the present with a single family, the Nautilidae which includes two genera, Nautilus and Allonautilus, with six species...
, which includes, in a separate family, Nautilus
Nautilus
Nautilus is the common name of marine creatures of cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina. It comprises six living species in two genera, the type of which is the genus Nautilus...
and Allonautilus
Allonautilus
The genus Allonautilus contains two species of nautiluses, which differ significantly in terms of morphology from those placed in the sister taxon Nautilus. Allonautilus is now thought to be a descendant of Nautilus and the latter paraphyletic.-External links:*...
.
Strophioceras, a gyrogonic form that comes from the Middle Devonian
Devonian
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...
of Europe and named by Hyatt in 1844 is part of the Trigonoceratacean family Centroceratidae
Centroceratidae
The Centroceratidae is the ancestral family of the Trigonocerataceae and of the equivalent Centroceratina; extinct shelled cephalopods belonging to the order Nautilida-Diagnosis:...
which was extant from the Devonian to the Early Permian
Permian
The PermianThe term "Permian" was introduced into geology in 1841 by Sir Sir R. I. Murchison, president of the Geological Society of London, who identified typical strata in extensive Russian explorations undertaken with Edouard de Verneuil; Murchison asserted in 1841 that he named his "Permian...
. (Kummel 1954. Flower 1950)
- For further description see CentroceratidaeCentroceratidaeThe Centroceratidae is the ancestral family of the Trigonocerataceae and of the equivalent Centroceratina; extinct shelled cephalopods belonging to the order Nautilida-Diagnosis:...
See also
- NautiloidNautiloidNautiloids are a large and diverse group of marine cephalopods belonging to the subclass Nautiloidea that began in the Late Cambrian and are represented today by the living Nautilus. Nautiloids flourished during the early Paleozoic era, where they constituted the main predatory animals, and...
ea - NautilidaNautilidaThe Nautilida constitute a large and diverse order of generally coiled nautiloid cephalopods that began in the mid Paleozoic and continues to the present with a single family, the Nautilidae which includes two genera, Nautilus and Allonautilus, with six species...