Английская Википедия:Asioryctitheria

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Шаблон:Short description Шаблон:Taxobox

Asioryctitheria ("Asian digging beasts") is an extinct order of early eutherians.

Skull structure

With the exception of Prokennalestes, these advanced forms lacked a Meckelian groove. Furthermore, they were equipped with double-rooted canines, a lower premolar with a reduced or absent metaconid and a more elongated lower premolar than their predecessors. In addition, the entoconid and hypoconulid on the lower molars are untwinned, the entotympanic is non-existent, the alisphenoid is enlarged, a Vidian foramen is present as well as a promontorium linked to the paroccipital process via the crista interfenestralis.

Classification

Asioryctitheria contains at least four genera and two families.[1][2]

References

Шаблон:Reflist

Further reading

  • Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure (New York: Columbia University Press, 2004), 499–501.

External links

Шаблон:Eutheria Шаблон:Taxonbar


Шаблон:Cretaceous-mammal-stub

  1. Mikko's Phylogeny Archive [1] Шаблон:Cite web
  2. Paleofile.com (net, info) Шаблон:Cite web. Шаблон:Cite web