Metrolytoceras
| Metrolytoceras Temporal range: Middle Jurassic | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Suborder: | Lytoceratina |
| Family: | Lytoceratidae |
| Genus: | Metrolytoceras Buckman, 1923 |
| Species | |
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Metrolytoceras is an extinct cephalopod genus that lived during the Middle Jurassic, characterized by a planispiral evolute shell with smooth middle and outer whorls, flat sides, and simplified sutures.
Metrolytoceras belongs to the ammonoid suborder Lytoceratina, which is typified by having intricate, moss-like sutures, and to the family Lytoceratidae. Its closest relative is Megalytoceras
References
- Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
- Sepkoski, J. 2002. A compendium of fossil marine animal genera (Cephalopoda); Bulletins of American Paleontology vol 364 p.560