Genus: Neosaurus NOPSCA, 1923
Etymology: Greek, neo, "new" and greek, sauros, "lizard."

Species: cynodus (GERVAIS, 1869) NOPCSA, 1923
Etymology:
= Geosaurus (?) cynodus GERVAIS, 1869
= ?Stereorachis cynodus (GERVAIS, 1869) THEVENIN, 1910

Holotype: Besancon France Museum, HN004 2009-00=1.

Locality: Les Gorges, Moissey Commune, Jura Department, France.

Horizon: Autunian.

Biostratigraphy:

Age: Late Gzhelian-Asselian Stage, lower Rotliegendes Epoch, Early Permian.

Material: Fragmentary left maxilla.