Shuranoceras

Shuranoceras
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Nautiloidea
Order:	†Oncocerida
Family:	†Karoceratidae
Genus:	†Shuranoceras Barskov, 1959

Shuranoceras is a genus in the extinct oncocerid family Karoceratidae that plied the shallow sea floor from the Early Silurian to the Early Devonian. Shuranoceras is characterized by a smooth, compressed, slowly enlarging orthoconic shell with a ventral submarginal siphuncle composed of complex segments. Shuranoceras was found in middle Silurian strata in Ferghana, central Asia.

Oncocerids (Order Oncocerida) were nautiloid cephalopods that lived during the early part of the Paleozoic Era. They are closely related to the Nautilids that include the living Nautilus, but on a different evolutionary branch.

See also

• Nautiloid
  • List of nautiloids

References

• Sweet, W.C. 1964; Nautiloidea—Oncocerida, in the Treatise on Invertebrate Paleontology; 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)