Английская Википедия:Fadenia
Шаблон:Short description Шаблон:Automatic taxobox
Fadenia is an extinct genus of eugeneodontid holocephalian chondrichthyan from the Carboniferous Period of Missouri (United States), the Permian period of Greenland, and the Early Triassic epoch of British Columbia, Canada (Sulphur Mountain Formation).[2][3]
Discovery and naming
The first fossils of Fadenia were discovered and described in the periodical Meddelelser om Grønland in 1932 by the Danish vertebrate palaeontologist Eigil Nielsen after studying the Upper Permian beds of Cape Stosch, in the fjord of Godthab Gulf in King Christian X Land, East Greenland. Nielsen had joined at the beginning of the Three-year Expedition to East Greenland led by Danish geologist and explorer Lauge Koch. The manager of the expedition was the botanist Gunnar Seidenfaden, after whose surname the genus was named.[4][5]
Classification
Fadenia belongs to Eugeneodontida, an extinct order of Chondrichthyes. They are characterized by the presence of tooth whorls. They include iconic genera, such as Helicoprion (buzz-saw shark), Ornithoprion, Edestus or Caseodus. Fadenia is one of the few eugeneodontid genera that survived the end-Permian mass extinction event. It is one of the last surviving genera of this clade. It could reach about Шаблон:Convert in length.[2][1]
References
Further reading
- Bendix-Almgreen, S. E. (1975). "Fossil fishes from the marine Late Palaeozoic of Holm Land – Amdrup Land, north-east Greenland". In: Meddelelser om Grønland. 195: 3–38.
- Ginter, M.; Hampe, O. & Duffin, C. J. (2010). "Chondrichthyes. Paleozoic Elasmobranchii: Teeth". Handbook of Paleoichthyology. Volume 3D: 1–168.
Шаблон:Paleo-holocephalan-stub
Шаблон:Triassic-fish-stub
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