Hardmanoceras
| Hardmanoceras Temporal range: uL Ordovician | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Tarphycerida |
| Family: | Trocholitidae |
| Genus: | Hardmanoceras Teichert & Glenister, 1952 |
Hardmanoceras is a Tarphycerid genus belonging to the Trochilidae from the upper Lower Ordovician to possibly the lower Middle Ordovician, found in Western Australia. Hardmanoceras is like Discoceras but prominently ribbed and with a depressed whorl section. The body, or living, chamber is long, 1 1/8 volutions long. The ultimate portion is slightly divergent, not an uncommon characteristic of tarphycerids.
Harmanoceras was named by Teichert and Glenister in 1952. The type us Hardmanoceras lobatum.
References
- W.M Furnish and Brian H Glenister, 1964. Nautiloidea-Tarphycerida. Treatise on Invertebrate Paleontology, Part K, Mollusca 3. Teichert and Moore, eds. Geol Soc of America and Univ Kansas Press.
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