Pleurorthoceras
Pleurorthoceras Temporal range: U Ordovician
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Scientific classification | |
Kingdom: | Animalia
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Phylum: | |
Class: | Cephalopoda
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Order: | |
Family: | |
Genus: | Pleurorthoceras Flower, 1962
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Pleurorthoceras is an orthocerid cephalopod from the Upper Ordovician of North America (Ohio, Manit). The shell externally is like that of Michelinoceras in being long and slender with a circular cross section. It differs in having a subcentral siphuncle with somewhat inflated segments.
References[]
- Sweet, Walter C. 1964. Nautiloidea-Orthocerida. Treatise on Invertebrate Paleontology, Part K. Geological Soc of America and Univ Kansas Press.
Categories:
- Nautiloids
- Paleozoic life of the Northwest Territories