Biology:Helicampodus
From HandWiki
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
- ↑ "†Helicampodus Branson 1935 (chimaera)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=34458.
- ↑ Itano, Wayne. "Helicampodus kokeni". https://www.researchgate.net/figure/Holotype-of-Helicampodus-kokeni-Branson-1935-Distal-side-view-of-symphyseal-tooth_fig2_275831627.
- ↑ "Helicampodus ✝". https://www.mindat.org/taxon-4825214.html.
- ↑ 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.
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