After McKenna & Bell, 1997, and Dykes, T. D., 2001

<==o †Dryolestidae Marsh, 1879 [Synonyms]
   |-- †Phascolestes mustelula Owen, 1871
   |-- †Miccylotyrans minimus Simpson, 1927
   |?- †Lakotalestes luoi Cifelli, Davis & Sames, 2014
   |--o †Laolestes Simpson, 1927 [incl.? Melanodon]
   |  |-- †L. andresi Martin, T. 1999
   |  |-- †L. grandis
   |  `-- †L. eminensis Simpson, 1927 [Dryolestes priscus Marsh, 1878]
   |--o †Melanodon Simpson, 1927 [Malthacolestes]
   |  |-- †M. oweni Simpson, 1927 [Malthacolestes osborni Simpson, 1927]; Laolestes oweni (Simpson, 1927)
   |  |-- †M. goodrichi Simpson, 1929 [Herpetairus humilus Simpson, 1929; Laolestes goodrichi (Simpson, 1929)]
   |  |-- †M. godsoni [M. sp. cf. M. goodrichi??]
   |  `-- †M. hodsoni
   |--o †Amblotherium Owen, 1871 [taxonomic history]
   |  |-- †A. nanum
   |  |-- †A. pusillus (Owen, 1866)
   |  |-- †A. gracilis (Marsh, 1879) Simpson, 1927 [taxonomic history]
   |  `-- †A. debilis Simpson, 1927
   |--o †Dryolestes Marsh, 1878 [taxonomic history]
   |  |-- †D. leiriensis
   |  |-- †D. obtusus Marsh, 1880
   |  |-- †D. priscus Marsh, 1878 [taxonomic history]
   |  |-- †D. vorax Marsh, 1879
   |  `-- †D. tenax Marsh, 1889
   |-- †Portopinheirdon asymmetricus Martin, T. 1999
   |-- †Peraspalax talpoides Owen, 1871
   |-- †Kurtodon pusillus Osborn, 1887 [Curtodon Zittel, 1892; Cyrtodon Winge, 1893]
   |-- †Crusafontia cuencana Henkel & Krebs, 1969
   |--o †Groeberitherium Bonaparte, 1986
   |  |-- †G. stipanicici Bonaparte, 1986
   |  `-- †G. novasi Bonaparte, 1986
   `-- †Malthacolestes osborni Simpson, 1927 [recognized as a valid genus by McKenna & Bell, 1997, as a synonym of Melanodon oweni by Dykes, 2001]

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