Exafroplacentalia
Proposed clade of placental mammals
From Wikipedia, the free encyclopedia
Exafroplacentalia or Notolegia is a clade of placental mammals proposed in 2001 on the basis of molecular research.[1][2][3]
| Exafroplacentalia | |
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Clade: | Exafroplacentalia Waddell et al, 2001[1] |
| Subgroups | |
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Exafroplacentalia places Xenarthra as a sister group to the Boreoeutheria (comprising Laurasiatheria and Euarchontoglires),[4] thus making Afrotheria a primitive group of placental mammals (the group name roughly means "those which are not African placentals").
Classification
Alternative hypotheses
One alternative hypothesis is the Epitheria hypothesis:
Another alternative hypothesis is the Atlantogenata hypothesis:
Updated analysis of transposable element insertions around the time of divergence strongly supports the fourth hypothesis of a near-concomitant origin of the three superorders of mammals:[5]