Stearoceras

{{Short description|Extinct genus of molluscs}}

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| fossil_range = U Carb (Penn) - L Perm

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| taxon = Stearoceras

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Stearoceras is an extinct genus of prehistoric nautiloids from the Lower Pennsylvanian (Upper Carboniferous) - Lower Permian with a fair worldwide distribution.(Kümmel 1964)

Stearoceras is recognized by its involute shell with a depressed subtrapizoidal whorl section and slight ventral and lateral lobes. In contrast Stenoporceras is subdiscoidal and has a suture with broad lateral lobes and a deep ventral saddle as found in syringonautilids.(ibid)

Nautiloids are a subclass of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species.