Gasconsoceras

Gasconsoceras is a genus of nautiloid cephalopods belonging to the tarphyceroid family Barrandeoceratidae, known from Middle Silurian marine strata in Quebec.

Gasconsoceras
Temporal range: Middle Silurian
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Tarphycerida
Suborder:
Barrandeocerina
Family:
Barrandeoceratidae
Genus:
Gasconsoceras

Foerste,1936

Shells of Gasconsoceras are rapidly enlarging gyrocones and serpenticones covered by fine transverse and longitudinal striae and prominent dorsal and lateral transverse ribs. A fair degree of mobility is indicated by the deep hyponomic sinus. Other than being between center and venter, the siphuncle is poorly known.

References

    R.C. Moore, ed. (1964). Part K, Mollusca 3. Treatise on Invertebrate Paleontology. Lawrence, Kansas: Geological Society of America and University of Kansas Press. p. K190–K216.


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