†family Helicampodontidae Itano and Lebedev 2023 (chimaera)

Chondrichthyes - Eugeneodontiformes - Helicampodontidae

Full reference: W. M. Itano and O. A. Lebedev. 2023. Taxonomic names, in Tooth whorl structure, growth and function in a helicoprionid chondrichthyan Karpinskiprion (nom. nov.) (Eugeneodontiformes) with a revision of the family composition. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 113:337-360

Parent taxon: Eugeneodontiformes according to W. M. Itano and O. A. Lebedev 2023

Sister taxa: Campyloprion, Campyloprion annectans, Caseodontoidea, Edestoidea, Edestoidei, Edistidae, Eugeneodontoidei, Helicoprionidae

Subtaxa: Helicampodus Hunanohelicoprion Parahelicampodus Sinohelicoprion

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Type: Helicampodus

Ecology: nektonic carnivore

Distribution:

• Triassic of China (1 collection), India (1)

• Permian of Azerbaijan (1), China (6), Greenland (1), Japan (1), Pakistan (2)

Total: 13 collections each including a single occurrence

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