Stereoplasmoceratidae
| Stereoplasmoceratidae Temporal range: Ordovician |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Orthocerida |
| Family: |
Stereoplasmoceratidae Kobayashi (1934) |
Stereoplasmoceratidae is an extinct family of actively mobile aquatic carnivorous cephalopods belonging to the subclass Nautiloidea endemic to what would be Asia during the Ordovician living from 490—457.5 mya, existing for approximately 32.5 million years.
Stereoplasmoceratidae was named by Kobayashi (1934). It was assigned to Pseudorthocerataceae by Teichert et al. (1964).
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