After Uetz, Etzold & Chenna, 1995-2000 [“The TIGR Reptile Database ” (former EMBL Reptile Database)]

<==o Colubridae (tarhakäärmeet) [probably paraphyletic]
   |?- †Dakotaophis
   |?- †Diadophis
   |?- †Dryinoides
   |?- †Mionatrix
   |?- †Palaeomalpolon
   |?- †Paleofarancia
   |?- †Paracoluber
   |?- †Paraoxybelis
   |?- †Protropidonotus
   |?- †Pseudocemophora
   |?- Stilosoma
   |?- Elapomorphinae [subfamily not recognized by The TIGR Reptile Database [former EMBL Reptile Database]]
   |-- "Boodontinae" ()?
   `--+-- Calamariinae ()?
      `--+-- Colubrinae (varsinaiset tarhakäärmeet)
         `--+-- Homalopsinae (valevesitarhakäärmeet)
            `--+-- Lycodontinae ()?
               `--+-- Natricinae (rantakäärmeet)
                  `--+-- Dasypeltinae (munakäärmeet)
                     `--+-- Dipsadinae (amerikan kotilokäämeet)
                        `--+--o Pareatinae (aasian kotilokäärmeet)
                           |  |?- Pareas
                           |  `?- Pseudopareas
                           |?- "Xenodermatinae" ()?
                           `?- Xenodontinae Cope, 1893 [=> Lycodontinae?] ()?

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