Reptilia - Squamata - Colubridae

Alternative spelling: Gyalopium

Parent taxon: Colubridae according to E. D. Cope 1875

See also Behler and King 1979, Mead et al. 1984 and Uetz 2005

Sister taxa: Abastor, Aglypha, Alsophis, Apostolepis, Bascanium, Carphophis, Cemophora, Chilomeniscus, Chionactis, Coluber owenii, Colubrinae, Coniophanes, Contia, Cyclophis, Dakotaophis, Dendrelaphis, Dipsadinae, Dromicus, Dryinoides, Drymarchon, Eutaenia, Farancia, Haldea, Helicops, Hierophis, Hispanophis, Homalopsinae, Hypsiglena, Leioheterodon, Lodia, Lycodon, Malpolon, Mionatrix, Naja sauvagei, Natricinae, Ophibolus, Opisthoglypha, Osceola, Palaelaphis, Palaeomalpolon, Palaeonatrix, Paleofarancia, Pantherophis, Paraoxybelis, Phimothyra, Pollackophis, Proteroglypha, Pseudoboa, Pseudocemophora, Pylmophis, Rhinechis, Rhinocheilus, Scaptophis, Sibon, Sonora, Spilotes, Storeria, Tachyophis, Tantilla, Thamnophis, Tretanorhinus, Trimorphodon, Tropidoclonium, Tropidonotus, Xenodontinae, Zamenis

Subtaxa: none

Ecology: ground dwelling insectivore

Distribution: found only at Deadman Cave (Quaternary of Arizona)

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Specimen images are retrieved through the ePANDDA API.