Laurasiatheria
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Laurasiatheria is a superorder of placental mammals that groups together true insectivores, bats, carnivorans, pangolins, even-toed ungulates, odd-toed ungulates, and all their extinct relatives. From
Scrotifera
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Scrotifera is a clade of placental mammals that groups together grandorder Ferungulata, Chiroptera, other extinct members and their common ancestors. The clade Scrotifera is a sister group to the orde
The common ancestor of Scrotifera might have been similar to Phenacodus, an early ungulate, in terms of body dimensions and life history (precociality in particular).