| Franklinoceras Temporal range: early Middle Ordovician | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Discosorida |
| Family: | Reudemannoceratidae |
| Genus: | Franklinoceras Flower (1957) |
Franklinoceras is an extinct gensu of cephalopods from the nautiloid order, Discosorida. Nautiloids comprise a subclass of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species.
Franklinoceras is an early discosorid from the family Reudemannoceratidae, similar to the ancestral Reudemannoceras. Both are from the early Middle Ordovician; both have endogastric cyrtocones, except in Franklinoceras they are compressed so as to be higher than wide, rather than the other way around as in Reudemannoceras (Teichert, 1964).
See also
- Reudemannoceratidae for further discussion of Reudemannoceras and Franklinoceras
- Nautiloidea
References
- Teichert, C. (1964). Nautiloidea -Discosorida; Treatise on Invertebrate Paleontology Part K, Mollusca 3, R.C. Moore (ed) Univ. Kans. press.
- Sepkoski, J.J. Jr. (2002). "A compendium of fossil marine animal genera". Sepkoski's Online Genus Database (CEPHALOPODA)
| Taxon identifiers | |
|---|---|
| Franklinoceras | |
 | This prehistoric nautiloid-related article is a stub. You can help Misplaced Pages by expanding it. |