Biology:Sigmocycloceras

From HandWiki
Short description: Genus of nautiloids

Sigmocycloceras
Temporal range: M. Ordovician
Scientific classification
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Animalia
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Sigmocycloceras

Kobayashi, 1934

Sigmocycloceras is a nautiloid cephalopod discovered in the Middle Ordovician of Korea, said to be similar to Sactorthoceras, and included in the Sactorthoceratidae, but unique in being longitudinally sigmoid and sculpted with transverse annuli.

References

Wikidata ☰ Q7512445 entry