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Orthoceratoidea ✝
| Source Data |
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| Rank | subclass (PBDB) | ||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Orthoceratoidea | ||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 91 | ||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 485 - 479 Ma Paleozoic | ||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 237 - 228 Ma Late/Upper Triassic | ||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | B. Kröger. 2008. A new genus of middle Tremadocian orthoceratoids and the Early Ordovician origin of orthoceratoid cephalopods. Acta Palaeontologica Polonica 53(4):745-749 | ||||||||||||||||||||||||||||||||||||
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Brachycycloceratidae ✝ family | accepted (GBIF) listed (PBDB) | 24 | 326 Ma Carboniferous | 254 Ma Permian | |
| Offleyoceratidae ✝ family | accepted (GBIF) listed (PBDB) | ||||
| Paraphragmitidae ✝ family | accepted (GBIF) listed (PBDB) | 17 | 439 Ma Silurian | 426 Ma Silurian | |
| Protocycloceratidae ✝ family | accepted (GBIF) listed (PBDB) | 138 | 485 Ma Cambrian | 303 Ma Carboniferous | |
| Sactorthoceratidae ✝ family | accepted (GBIF) listed (PBDB) | 34 | 479 Ma Early/Lower Ordovician | 443 Ma Silurian | |
| Slemmestadoceras ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 485 Ma Cambrian | 485 Ma Cambrian |
Synonymy List
| Year | Name and Author |
|---|---|
| 1844 | Orthocerataceae M'Coy |
| 1964 | Orthocerataceae Sweet p. 224 |
| 1994 | Orthocerataceae Evans p. 18 |
| 1996 | Orthocerataceae Evans p. 71 |
| 2005 | Orthoceratoidea Evans p. 24 |
| 2011 | Orthoceratoidea Kröger and Evans |
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!
