Haydenoceras
| Haydenoceras Temporal range: Middle Devonian | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Tarphycerida |
| Family: | †Barrandeoceratidae |
| Genus: | †Haydenoceras Flower, 1949 |
Haydenoceras is a genus of middle Devonian cephalopods originally placed in the Barrandeocerida. The genus can be recognized by its strongly compressed, gradually expanding exogastrically curved shell with a strongly rounded dorsum and acutely angled venter, calling attention to the general form of earlier Bassleroceras. The siphuncle is tubular, central.
Related genera include Avilionella, Barrandeoceras, Gasconsoceras, Laureloceras, and Savageoceras.