Genus: Mentosaurus ROEPKE 1930
Etymology:

Species: waltheri ROEPKE, 1930
Etymology:

Holotype: GMH?

Locality: Nietleben, near Halle, Sachsen-Anhalt State, Germany.

Horizon: Early Muschelkalk.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Late Middle Triassic.

Material: Fragmentary mandible, and interclavicle.