The Euarchontoglires probably split from the Laurasiatheriasister group about 85 to 95 million years ago during the Cretaceous. This hypothesis is supported by fossil as well as molecular evidence.
The hypothesized relationship among the Euarchontoglires is as follows:
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Kriegs, Jan Ole, Gennady Churakov, Martin Kiefmann, Ursula Jordan, Juergen Brosius, Juergen Schmitz (2006). "Retroposed Elements as Archives for the Evolutionary History of Placental Mammals". PLoS Biol4 (4): e91. doi:10.1371/journal.pbio.0040091. (pdf version)