Maccoyoceras

Maccoyoceras is a genus of nautilids included in the family Trigonoceratidae from the Mississippian of North America (Michigan) and Europe.

Maccoyoceras
Temporal range: Mississippian
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Nautilida
Family: Trigonoceratidae
Genus: Maccoyoceras
Miller, Dunbar, & Condra, 1933

The shell of Maccoyocerasis evolute, volutions only slightly impressed, whorl section hexagonal. Venter flattened, flanks converging, umbilical shoulder prominent. Siphuncle slender, ventral of whorl center.

References

    • Barnhard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleongology, Part K. Geological Society of America and University of Kansas Press.


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