Franklinoceras

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Franklinoceras
Temporal range: early Middle Ordovician
Scientific classification
Kingdom:
Phylum:
Mollusca
Class:
Subclass:
Nautiloidea
Order:
Family:
Genus:
Franklinoceras

Flower (1957)

Franklinoceras is an extinct gensu of cephalopods from the nautiloid order, Discosorida. Nautiloids comprise a subclass of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species.

Franklinoceras is an early discosorid from the family Reudemannoceratidae, similar to the ancestral Reudemannoceras. Both are from the early Middle Ordovician; both have endogastric cyrtocones, except in Franklinoceras they are compressed so as to be higher than wide, rather than the other way around as in Reudemannoceras (Teichert, 1964).

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