Endolobus
Endolobus is an extinct genus from the nautiloid order, Nautilida. Nautiloids are a subclass of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species, including Nautilus. Endolubus is included in the family Koninckioceratidae which is part of the superfamily Taintocerataceae (Kümmel, 1964. K424).
| Endolobus Temporal range: Upper Mississippian - Lower Permian | |
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| Genus: | Endolobus |
The shell of Endolobus is an evolute spiral with whorl sections subelliptical; broadly rounded ventrally, narrowly rounded laterally, and slightly impressed dorsally (Kümmel, 1964. K424). There are low nodes on the flanks and the suture is slightly sinuous but with a prominent dorsal lobe. The siphuncle is small, subcentral, and orthochoanitic.
Endolobus has a range from the Lower Carboniferous (U Miss) to the Lower Permian and has been found in different locations in North America and eastern Europe.
References
- Kümmel,B. (1964); Nautiloidea—Nautilida, in the Treatise on Invertebrate Paleontology, Part K Nautiloidea; Geological Society of America and University of Kansas Press.
- Sepkoski, J.J. Jr. (2002). A compendium of fossil marine animal genera. D.J. Jablonski & M.L. Foote (eds.). Bulletins of American Paleontology 363: 1–560. Sepkoski's Online Genus Database (CEPHALOPODA)