After Pettigrew et al., 1989 and McKenna & Bell, 1997

<==o Dermoptera (keguaanit & suurlepakot)
   |?-o †Cyriacotherium Rose & Krause, 1982; U.Paleoc. NA. [Cyriacotheriidae] [also been reated as a pantodont]
   |  |-- †C. argyreum
   |  `-- †C. psamminum
   |?-o †Thylacaelurus [Thylacaelurinae]
   |  |-- †T. campester Storer, 1984
   |  `-- †T. montanus
   |-- †Paromomyidae
   `--+-- †Plagiomenidae
      `--+--o †Mixodectidae
         |  |-- †Dracontolestes aphantus
         |  `--o †Mixodectes
         |     |-- †M. malaris (Cope, 1883) Matthew, 1937 [Indrodon malaris Cope, 1884; Oxyacodon tecumsae Van Valen, 1978]
         |     `-- †M. pungens
         `--+?- Megachiroptera sensu Pettigrew, et. al., 1989 (suurlepakot)
            `--o Cynocephalidae [Galeopithecidae] (varsinaiset kaguaanit)
               |-- †Dermotherium
               `--o Cynocephalus (kaguaanit)
                  |-- C. volans (kaguaani)
                  `-- C. variegatus (täpläkaguaani)

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