''Diablophis'' is a genus of Late Jurassic stem-snake from the

Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic, Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandsto ...

of North America. The type and only species, ''D. gilmorei'' was once thought to be a species of ''

Parviraptor ''Parviraptor'' is a genus of stem-snake (clade Ophidia) containing one species, ''Parviraptor estesi'', from the Late Jurassic (Tithonian) or Early Cretaceous (Berriasian) Purbeck Limestone Formation of Dorset, England. A second species, ''Pa ...

'' but is now classified as its own genus. The animal is known from multiple specimens, the holotype being LACM 4684/140572, which consists of a broken right mandible, broken right maxilla and broken axis vertebrae. A number of other specimens have also been attributed to ''Diablophis'', including LACM 4684/140572 and LACM 5572/120732, the specimens previously attributed to ''Parviraptor'' and LACM 4684/120472.

Phylogeny

''Diablophis'' has been recovered as a basal snake, though this placement is not undisputed. The cladogram from figure 4b in Caldwell et al.'s 2015 study is replicated below.

References

{{Taxonbar, from=Q113125252 Prehistoric snakes Prehistoric reptile genera Jurassic reptiles of North America Morrison fauna Fossil taxa described in 2015