Ohioceras
| Ohioceras Temporal range: M Silurian
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| Genus: | Ohioceras Shimazu & Obata, 1935
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Ohioceras is an extinct genus of suborthochonic nautiloids from the Silurian of Ohio belonging to the orthoceroid family Kionoceratidae.
Ohioceras is characterized by a slightly curved longiconic shell with a circular to slightly depressed cross section. The surface is lined with broad, low, longitudinal ribs separated by distinct shallow grooves. The siphuncle is subcentral, apparently orthochoanitic.
References
- Sweet, Walter C. 1964. Nautiloidea-Orthocerida. Treatise on Invertebrate Paleontology, Part K. Geological Soc of America, and Univ Kansas Press.
- Ohioceras -Paleobio db.