Mecynoceras

Mecynoceras is a genus of Late Devonian oncocerids included in the Poterioceratidae, a family of subcircular to compressed exogastric cyrtocones without a hyponomic sinus.

Mecynoceras
Temporal range: Late Devonian
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Oncocerida
Family:
Poterioceratidae
Genus:
Mecynoceras

Foerste, 1926

Mecynoceras has a compressed, gibbous cyrtoconic shell. The venter, especially of the chambered phragmocone is convex in profile; the body chamber long and tubular. Septa are transverse, close spaced; the siphuncle large, subcentral, with actinosiphonate deposits.

Cyrtogomphus, Lysagoroceras, and Poterioceras are among related genera.

References
    • Walter C. Sweet, 1964. Nautiloidea-Oncocerida. Treatise on Invertebrate Paleontology, Part K. Geological Society of America.
    • Mecynoceras Fossilworks entry.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.