Mammalia - Theriiformes

Full reference: R. L. Cifelli. 1999. Tribosphenic mammal from the North American Early Cretaceous. Nature 401:363-366

Parent taxon: Boreosphenida according to T. Martin and O. W. M. Rauhut 2005

Sister taxa: Aegialodon, Asiatherium, Deltatheridium, Didelphis, Erinaceus, Hypomylos, Paleomolops, Picopsidae, Prokennalestes, Theria, Tribosphenida, Tribotherium, Zygiocuspis

Subtaxa: Montanalestes keeblerorum

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Type: Montanalestes keebleri

Ecology: scansorial insectivore