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Boreoeutheria (/boʊˌriːoʊjuːˈθɛriə/, "northern eutherians") is a
magnorder of
placental mammals that
groups together superorders Euarchontoglires and...
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result of
convergent evolution.
Euarchontoglires probably split from the
Boreoeutheria magnorder about 85 to 95
million years ago,
during the Cretaceous, and...
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there are
three major subdivisions or
lineages of
placental mammals:
Boreoeutheria, Xenarthra, and Afrotheria. All of
these diverged from
common ancestors...
- continents, respectively,
presumably in the Cretaceous.
Together with
Boreoeutheria, they make up Placentalia. The
monophyly of this
grouping is supported...
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sister group to
Euarchontoglires with
which it
forms the
magnorder Boreoeutheria.
Laurasiatheria was
discovered on the
basis of the
similar gene sequences...
- are
Atlantogenata (basal
Boreoeutheria),
Epitheria (basal Xenarthra) and
Exafroplacentalia (basal Afrotheria).
Boreoeutheria in turn
contains two major...
- the
group Atlantogenata), or to
Boreoeutheria (in the
group Exafroplacentalia), or to
Epitheria (Afrotheria+
Boreoeutheria, i.e. as a
sister group to all...
- moles;
shrews are
related to
rodents only in that both
belong to the
Boreoeutheria magnorder.
Shrews have sharp, spike-like teeth,
whereas rodents have...
- eutherians, more
basal to Placentalia. The
weakly favoured cladogram favours Boreoeutheria as a
basal eutherian clade as
sister to the Atlantogenata. Phylogeny...
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Examples Magnorder magnus, 'large, great, important' Atlantogenata,
Boreoeutheria Superorder super, 'above' Euarchontoglires,
Laurasiatheria Grandorder...
