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Helicoprionidae ✝
| Source Data |
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| Rank | family (PBDB) | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Chordata : Chondrichthyes : Eugeneodontiformes : Helicoprionidae | ||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 22 | ||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 323 - 307 Ma Carboniferous | ||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 254 - 252 Ma Permian | ||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Vertebrata) | ||||||||||||||||||||||||||||||||||||||||||
| Motility | actively mobile (based on Eugeneodontiformes) | ||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Eugeneodontiformes) | ||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | phosphatic (based on Vertebrata) | ||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | D. V. Obruchev. 1964. Subclass Holocephali (chimeras). In D. V. Obruchev (ed.), Fundamentals of Paleontology. Vol. XI. Agnatha, Pisces. Izdatel'stvo "Nauka", Moscow | ||||||||||||||||||||||||||||||||||||||||||
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Agassizodus ✝ genus | listed (PBDB) | 9 | 323 Ma Carboniferous | 260 Ma Permian | |
| Arpagodus ✝ genus | listed (PBDB) | ||||
| Campyloprion ✝ genus | listed (PBDB) | 6 | 323 Ma Carboniferous | 304 Ma Carboniferous | |
 Helicoprion ✝genus | listed (PBDB) | 35 | 299 Ma Carboniferous | 260 Ma Permian | |
| Hunanohelicoprion ✝ genus | listed (PBDB) | 2 | 279 Ma Permian | 272 Ma Permian | |
| Parahelicoprion ✝ genus | listed (PBDB) | 1 | 299 Ma Carboniferous | 299 Ma Carboniferous | |
| Sarcoprion ✝ genus | listed (PBDB) | 2 | 260 Ma Permian | 260 Ma Permian | |
| Sinohelicoprion ✝ genus | listed (PBDB) | 4 | 254 Ma Permian | 254 Ma Permian | |
| Toxoprion ✝ genus | listed (PBDB) | 1 | 299 Ma Carboniferous | 299 Ma Carboniferous |
Synonymy List
| Year | Name and Author |
|---|---|
| 1911 | Helicoprionidae Karpinsky |
| 1964 | Helicoprionidae Obruchev p. 362 |
| 1981 | Agassizodontidae Zangerl p. 86 |
| 2004 | Agassizodontidae Goto and Okura p. 218 |
| 2006 | Agassizodontidae Nelson p. 44 |
| 2010 | Agassizodontidae Ginter et al. p. 124 |
| 2018 | Helicoprionidae Itano and Lucas p. 408 |
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!
