Parryoceras
| Parryoceras Temporal range: Middle and Late Ordovician | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Discosorida |
| Family: | †Cyrtogomphoceratidae |
| Genus: | †Parryoceras Sweet and Miller, 1957 |
Parryoceras is a cyrtogomphoceratid similar to Strandoceras but with broadly expanded siphuncle segments and a nearly straight ventral line. The mature shell is thickened on the inside just behind the aperture resulting in a constriction in the internal mold at the adoral end.
Parryoceras comes from the middle and upper Ordovician of arctic Canada and Norway.