Сүтқоректілердің Laurasiatheria және Euarchontoglires топтары

Magnorder of mammals containing Laurasiatheria and Euarchontoglires
Automatic taxobox
|fossil range =
|image = Laurasiatheria. jpg
|image caption = From top to right: European hedgehog, Lyle's flying fox, Siberian tiger, Indian pangolin, red deer and white rhino. Representing the orders: Eulipotyphla, Chiroptera, Carnivora, Pholidota, Artiodactyla and Perissodactyla, comprising Laurasiatheria. |image2 = Euarchontoglires collage. jpg
|image2 caption = From top to left: Sunda colugo, Desmarest's hutia, lar gibbon, European hare, brown rat, common treeshrew, ring tailed lemur, and human playing with a rabbit. Representing the orders: Dermoptera, Rodentia, Primates, Lagomorpha, and Scandentia, comprising Euarchontoglires. |display parents = 2
|taxon = Boreoeutheria
|authority = Springer & de Jong, 2001; Murphy et al., 2001
|subdivision ranks = Superorders
|subdivision =
Euarchontoglires
Laurasiatheria
Incertae sedis:
Genus: †Veratalpa
|synonyms =
Boreoplacentalia
Boreotheria With a few exceptions, male boreoeutherians have a scrotum, an ancestral feature of the clade. The sub clade Scrotifera was named after this feature.

The majority of earliest known fossils belonging to this group date to about 66 million years ago, shortly after the K Pg extinction event, though molecular data suggest they may have originated earlier, during the Cretaceous period. This is further supported with fossils of Altacreodus magnus and two species from genus Protungulatum dated about 70.6 million years ago. The common ancestor of Boreoeutheria lived between 107 and 90 million years ago. The paper's authors claimed that the genome sequence of the boreoeutherian ancestor could be computationally predicted with 98% accuracy, but would "take a few years and a lot of money". It is estimated to contain three billion base pairs.