Haydenoceras
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.
| Haydenoceras Temporal range: Middle Devonian | |
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| Genus: | Haydenoceras Flower 1949 |
Related genera include Avilionella, Barrandeoceras, Gasconsoceras, Laureloceras, and Savageoceras.
References
- Walter C. Sweet 1964. Natiloidea - Barrandeocerida, Treatise on Invertebrate Paleontology Part K. Geological Society of America and University of Kansas Press.
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