Anagaloidea

Anagaloidea is an extinct order of mammals that first appeared during the Cretaceous period.

Anagaloidea
Temporal range: Late Cretaceous–Early Oligocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Superorder: Euarchontoglires
(unranked): Glires
Order: †Anagaloidea
Families
  • Anagalidae
  • Pseudictopidae
  • Astigalidae?
  • Zalambdalestidae?

Taxonomy

According to the traditional (morphological) view, Anagaloidea is part of the superorder Anagalida, along with the elephant shrews, rodents and lagomorphs.

However, the Anagalida are considered to be polyphyletic. Genetic studies have shown that the elephant shrews are actually part of a different macro-group of mammals called the Afrotheria, while the position of several extinct families of Anagalida is uncertain. The Zalambdalestidae are almost certainly unrelated to any of these groups; they probably represent more basal Eutherians and might not even be true Eutherians at all.

The Anagalidae and the Pseudictopidae probably represent a genuine clade. This clade is known as the Anagaloidea, which seems to be related to the rodents and lagomorphs after all. Together they form the clade Glires, often grouped with the Euarchonta to form the superorder Euarchontoglires.

Classification
gollark: Why do you need batteries for nuclear power/mining of uranium?
gollark: Capitalism approximately satisfies people's values. But people apparently have terrible values.
gollark: Praise N U C L E A R.
gollark: I don't think much can practically be done at this point outside of just trying to bodge the climate into sort of working via geoengineering of some kind.
gollark: Don't blame *capitalism* for people being non-long-term.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.