| 词条 | Hardmanoceras |
| 释义 |
| fossil_range = uL Ordovician | image = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoaa | ordo = Tarphycerida | familia = Trocholitidae | genus = Hardmanoceras | genus_authority = 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
2 : Ordovician cephalopods of Oceania|Prehistoric nautiloid genera |
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