Chicagooceras

Chicagooceras is a genus of orthocerids from the Silurian of North America.

Chicagooceras
Temporal range: Silurian
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Orthocerida
Genus:
Chicagooceras

Foerste and Savage 1927

Shells are short, breviconic, and faintly curved. Sutures are fairly wide spaced and though straight, slope slightly, dorso-ventrally, to the rear. Siphuncle: small, slightly ventral of the center, thought to be orthochoanitic (straight septal necks) and cylindrical (tubular connecting rings).

References
    • Walter c. Sweet, 1964. Nautiloidea -Orthocerida. Treatise on Invertebrate Paleontology, Part K. Geological Society of America.
    • Chicagooceras in Fossilworks.


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