Helicampodus

Helicampodus Temporal range: Late Permian - Early Triassic, 254–251.3  Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Holotype specimen of H. kokeni
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	† Eugeneodontiformes
Family:	† Helicampodontidae
Genus:	† Helicampodus Branson, 1935
Species
†Helicampodus egloni †Helicampodus kokeni † Helicampodus qomolangma ?

Helicampodus is an extinct genus of shark-like eugeneodont fish that lived during the Late Permian to Early Triassic period. Fossils of Helicampodus have been found in Asia. ^[1] The largest teeth of Helicampodus kokeni are about 2.7 cm in length, which points to a maximum size of around 2 m based on its relatives. ^[2] It was earlier placed in the families Helicoprionidae and Edestidae, ^[3] but has more recently been placed in Helicampodontidae. ^[4]

References

1. "†Helicampodus Branson 1935 (chimaera)". Fossilworks.org. Retrieved 25 August 2023.
2. Itano, Wayne. "Helicampodus kokeni". researchgate.net. Retrieved 25 August 2023.
3. "Helicampodus ✝". mindat.org. Retrieved 25 August 2023.
4. Lebedev, O. A.; Itano, W. M.; Johanson, Z.; Alekseev, A. S.; Smith, M. M.; Ivanov, A. V.; Novikov, I. V. (2022). "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 (4): 337–360. doi:10.1017/S1755691022000251.