Kayoceras
| Kayoceras Temporal range:
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| Phylum: | Mollusca
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| Genus: | Kayoceras Foerste, 1934
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Kayoceras is a genus of middle Silurian nautiloid cephalopods, known from Iowa and Illinois, belonging to the Discosoridae. Related genera include Discosorus, , and . Kayoceras has a short, breviconic shell, like Discosorus, but with a more central siphuncle. Derivation is probably from Discosorus, through an evolutionary shifting of the siphuncle position, which has its origin in the Lowoceratidae, possibly through .
References[]
- Curt Teichert, 1964. Nautiloidea -Discosorida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas Press.
- Kayoceras , Paleobiology database.
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Categories:
- Prehistoric nautiloid genera
- Discosorida
- Prehistoric nautiloid stubs