Английская Википедия:Ashorocetus

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Шаблон:Short description Шаблон:Italic title Шаблон:Automatic Taxobox

Ashorocetus is a monotypic genus of an extinct primitive baleen whale of the family Aetiocetidae. It was named by Шаблон:Harvnb, and contains one species, A. eguchii. Fossils of this whale are found from the Chattian Morawan formation, near Ashoro, of upper Oligocene (Шаблон:Mya) Hokkaido, Japan (Шаблон:Coord, paleocoordinates Шаблон:Coord).[1][2] Ashorocetus eguchii was described based on a partial skull and is named after the type locality and Kenichiro Eguchi of the Ashoro Museum of Paleontology.[3]

Description

Шаблон:Harvnb described four new aetiocetid species, of whom Ashorocetus eguchii was the most primitive. It has a neatly telescoped skull and is closely related to Chonecetus, another primitive aetiocetid. Barnes et al. also described Morawanocetus yabukii, a more derived species with a foreshortened braincase, intermediate between Chonecetus and Aetiocetus; Aetiocetus tomitai, the most primitive Aetiocetus discovered; and Aetiocetus polydentatus, the most derived Aetiocetus with a highly telescoped cranium and both homodont and polydont dentition. Barnes et al. also proposed three subfamilies for Aetiocetidae (Chonecetinae, Morawanocetinae, and Aetiocetinae) to reflect this proposed evolution within the family.[4] The placement of A. polydentatus in Aetiocetus has, however, been questioned, as has the monophyly (and therefore the proposed subfamilies) of Aetiocetidae.[5]

Sister taxa

References

Notes

Шаблон:Reflist

Sources

Шаблон:Mysticeti Genera Шаблон:Taxonbar


Шаблон:Paleo-whale-stub

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  1. ↑ Шаблон:Cite web
  2. ↑ Шаблон:Cite web
  3. ↑ Шаблон:Cite web (including an illustration of the holotype)
  4. ↑ Шаблон:Harvnb
  5. ↑ Шаблон:Harvnb
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:Ashorocetus&oldid=13278492