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Hardmanoceras ✝
| Description | 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. From Wikipedia article at https://en.wikipedia.org/wiki/Hardmanoceras, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | ||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | genus | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF) | Life : Animalia : Mollusca : Cephalopoda : Trocholitidae : Hardmanoceras | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Tarphycerida : Trocholitidae : Hardmanoceras | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Hardmanoceras Teichert & Glenister, 1952 | ||||||||||||||||||||||||||||||||||||||||||
| Name Published In | J. Paleont., 26 | ||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 3 | ||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 485 - 478 Ma Paleozoic | ||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 461 - 456 Ma Ordovician | ||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite (based on Tarphycerida) | ||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560 | ||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Hardmanoceras |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Hardmanoceras chrysanthimum ✝ species | accepted (GBIF) listed (PBDB) | 3 | 478 Ma Early/Lower Ordovician | 478 Ma Early/Lower Ordovician | |
| Hardmanoceras lobatum ✝ species | accepted (GBIF) listed (PBDB) | 1 | 485 Ma Cambrian | 485 Ma Cambrian |
Synonymy List
| Year | Name and Author |
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| 1952 | Hardmanoceras Teichert and Glenister |
| 1964 | Hardmanoceras Teichert et al. p. 361 |
| 1984 | Hardmanoceras Stait and Burrett |
| 2002 | Hardmanoceras Sepkoski, Jr. |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
