†Aenigmadelphys Cifelli and Johanson 1994 (marsupial)
Full reference: R. L. Cifelli and Z. Johanson. 1994. New marsupial from the Upper Cretaceous of Utah. Journal of Vertebrate Paleontology 14(2):292-295
Parent taxon: Didelphimorphia according to B. M. Davis 2007
Sister taxa: Alphadontidae, Apistodon, Borhyaenoidea, Didelphidae, Didelphoidea, Iqualadelphis, Pauladelphys, Pediomyoidea, Peradectoidea, Stagodontidae, Varalphadon
Subtaxa: Aenigmadelphys archeri
Type: Aenigmadelphys archeri
Ecology: scansorial omnivore