Trimeroceratidae is a family of molluscs in the order
Oncocerida
The Oncocerida comprise a diverse group of generally small nautiloid cephalopods known from the Middle Ordovician to the Mississippian (early Carboniferous; one possible member is known from the Early Permian), in which the connecting rings are t ...
. These molluscs were fast-moving nektobenthic carnivores. They lived in the
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozo ...
period.
Distribution
Species have been found in Silurian-era strata of Canada (Québec), China, Czechia, Italy, Russia, Sweden, and the United States (Indiana, Wisconsin).
Genus
* ''
Clathroceras''
* ''
Eotrimeroceras''
* ''
Inversoceras
''Inversoceras'' is a genus of cephalopods in the order Oncocerida and the family Trimeroceratidae. These mollusks were fast-moving nektobenthic carnivores. They lived in the Silurian period, from the Lower Wenlock age (428.2 ± 1.5 to 422.9 ...
''
* ''
Jeppssonoceras''
* ''
Patagiumoceras''
* ''
Pentameroceras''
* ''
Plemeroceras''
* ''
Simonssoceras''
* ''
Stenogomphoceras''
* ''
Trimeroceras''
See also
*
List of nautiloids
This list of nautiloids is a comprehensive listing of all genera that have ever been included in the subclass Nautiloidea, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered in ...
References
Paleobiology Database
Oncocerida
Prehistoric cephalopod families
Silurian first appearances
Silurian extinctions
{{silurian-animal-stub