Misplaced Pages

Asioryctitheria

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Extinct order of early eutherians

Asioryctitheria
Temporal range: 109–77 Ma PreꞒ O S D C P T J K Pg N AlbianCampanian
Asioryctes nemegtensis skull
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Eutheria
Order: Asioryctitheria
Novacek et al., 1997
Genera

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.

References

  1. "Asioryctitheria". paleobiodb.org. Retrieved 2021-08-11.
  2. Mikko's Phylogeny Archive Haaramo, Mikko (2007). "Basal Eutheria – placental mammals and relatives". Retrieved 30 December 2015.
  3. Paleofile.com (net, info) "Paleofile.com". Archived from the original on 2016-01-11. Retrieved 2015-12-30.. "Taxonomic lists- Mammals". Archived from the original on 11 January 2016. Retrieved 30 December 2015.
  4. Kusuhashi, Nao; Tsutsumi, Yukiyasu; Saegusa, Haruo; Horie, Kenji; Ikeda, Tadahiro; Yokoyama, Kazumi; Shiraishi, Kazuyuki (22 May 2013). "A new Early Cretaceous eutherian mammal from the Sasayama Group, Hyogo, Japan". Proceedings of the Royal Society B: Biological Sciences. 280 (1759): 20130142. doi:10.1098/rspb.2013.0142. PMC 3619506.

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

Eutheria
Synapsida
Cynodontia
Mammalia
Eutheria
    • see below↓
Eutheria
Eutheria
Adapisoriculidae
Asioryctitheria
Cimolestidae
Didymoconidae
Horolodectidae
Leptictida
Gypsonictopidae
Pseudorhyncocyonidae
Leptictidae
Palaeoryctidae
Pantolesta
Paroxyclaenidae
Pantolestidae
Taeniodonta
Conoryctidae
Onychodectidae
Stylinodontidae
Tillodontia
Zalambdalestidae
Zhelestidae
Pantodonta
Placentalia
Leptictidium nasutum

Palaeosinopa didelphoides Wortmania otariidens

Zalambdalestes lechei
Taxon identifiers
Asioryctitheria


Stub icon

This article about a Cretaceous mammal is a stub. You can help Misplaced Pages by expanding it.

Categories: