| Mongoceras Temporal range:
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|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Subclass: | |
| Order: | |
| Superfamily: | |
| Genus: | Mongoceras
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Mongoceras is an extinct orthoconic nautiloid cephalopod found in the Silurian of China and Siberia. [1] It is included in the Orthocerida. [2] The family in undetermined.
Morphology
As with the Orthocerida the shell of Mongoceras is generally long and straight, with a generally central siphuncle composed of thin connecting rings. A vertical, heads down orientation in life can be inferred, in contrast with the horizontal benthic orientation of ellesmerocerida, endocerids, and many actinocerids with their weighted ventral siphuncles. [3]
Association
Mongoceras has been found with Kionoceras, Geisonocers, and Sichuanoceras in Silurian reefoid formations in China, along with a suite of other benthic invertebrates. It has also been found in core samples from Siberia with Edenoceras hiliferum and Geisonoceras kureikense. [3]
References
- ^ PaleoBiology Database Mongocerasentry accessed 10 July 2012
- ^ Sepkoski's list of Cephalopod genera
- ^ a b C. Teichert (1964). R.C. Moore (ed.). Part K, Mollusca 3. Treatise on Invertebrate Paleontology. Lawrence, Kansas: Geological Society of America and University of Kansas Press. p. K190–K216.
 | This prehistoric cephalopod-related article is a stub. You can help Wikipedia by expanding it. |
| Mongoceras Temporal range:
| |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Subclass: | |
| Order: | |
| Superfamily: | |
| Genus: | Mongoceras
|
Mongoceras is an extinct orthoconic nautiloid cephalopod found in the Silurian of China and Siberia. [1] It is included in the Orthocerida. [2] The family in undetermined.
Morphology
As with the Orthocerida the shell of Mongoceras is generally long and straight, with a generally central siphuncle composed of thin connecting rings. A vertical, heads down orientation in life can be inferred, in contrast with the horizontal benthic orientation of ellesmerocerida, endocerids, and many actinocerids with their weighted ventral siphuncles. [3]
Association
Mongoceras has been found with Kionoceras, Geisonocers, and Sichuanoceras in Silurian reefoid formations in China, along with a suite of other benthic invertebrates. It has also been found in core samples from Siberia with Edenoceras hiliferum and Geisonoceras kureikense. [3]
References
- ^ PaleoBiology Database Mongocerasentry accessed 10 July 2012
- ^ Sepkoski's list of Cephalopod genera
- ^ a b C. Teichert (1964). R.C. Moore (ed.). Part K, Mollusca 3. Treatise on Invertebrate Paleontology. Lawrence, Kansas: Geological Society of America and University of Kansas Press. p. K190–K216.
|
| This prehistoric cephalopod-related article is a stub. You can help Wikipedia by expanding it. |