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Helicampodontidae
Taxonomy
Helicampodontidae was named by Itano and Lebedev (2023). Its type is Helicampodus.
It was assigned to Eugeneodontiformes by Itano and Lebedev (2023).
It was assigned to Eugeneodontiformes by Itano and Lebedev (2023).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Helicampodontidae Itano and Lebedev p. 342 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Helicampodontidae Itano and Lebedev 2023
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G. †Helicampodus Branson 1935
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†Helicampodus egloni Obruchev 1965
†Helicampodus kokeni Branson 1935
†Helicampodus qomolangma Zhang 1976
G. †Sinohelicoprion Liu and Chang 1963
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†Sinohelicoprion changhsingensis Liu and Chang 1963
†Sinohelicoprion macrodontus Lei 1983
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Wagner 2023, Carroll 1988 | |||||
Age range: base of the Guadalupian to the top of the Griesbachian or 273.01000 to 250.50000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | China (Hunan) | Hunanohelicoprion xiandongensis (50995) | |
| Guadalupian | China (Guizhou) | Hunanohelicoprion xiandongensis (118031) | |
| Wuchiapingian | Pakistan | Helicoprion sp. (149440) | |
| Wuchiapingian | Greenland | Parahelicampodus sparcki (136373) | |
| Wuchiapingian - Changhsingian | Japan | Helicampodus sp. (133502) | |
| Changhsingian | China (Zhejiang) | Sinohelicoprion changhsingensis (121648 149441 149442) | |
| Changhsingian | Azerbaijan | Helicampodus egloni (97207) | |
| Changhsingian | China (Hunan) | Sinohelicoprion macrodontus (123423) | |
| Changhsingian | Pakistan | Helicampodus kokeni (27264) | |
| Griesbachian | China (Xizang) | Sinohelicoprion qomolangma (148625) | |
| Griesbachian | India (Kashmir) | Helicampodus sp. (48914) |