Primatomorpha

The term "Primatomorpha" first appeared in the general scientific literature in 1991 (K.C. Beard) and 1992 (Kalandadze, Rautian). Major DNA sequence analyses of predominantly nuclear sequences^[5] support the Euarchonta hypothesis, while a major study investigating mitochondrial sequences supports a different tree topology.^[6] A study investigating retrotransposon presence/absence data has claimed strong support for Euarchonta.^[7] Some interpretations of the molecular data link Primates and Dermoptera in a clade (mirorder) known as Primatomorpha, which is the sister of Scandentia. Primates probably split from the Dermoptera sister group 79.6 million years ago during the Cretaceous.^[8][2]

Other interpretations link the Dermoptera and Scandentia together in a group called Sundatheria as the sister group of the primates.^[9][10] Some studies place Scandentia as sister of the Glires, invalidating Euarchonta.^[11][12]