Genus: Guimarotodon HAHN, 1969
Etymology: In reference to Guimarota Coal Pits, Guimarota, Portugal, where the fossil was found, Greek, odon, “tooth”: Guimarota tooth.

Species: leiriensis HAHN, 1969
Etymology:

Holotype: V. J. 396-155

Locality: Guimarota lignite mine (Mina de Lignito Guimarota), 1.5 km SSE of Leiria, Leiria District, Portugal.

Horizon:

Biostratigraphy:

Age: Lustianien, Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material: Molar.

Referred material:

HAHN & HAHN, 2000

V. J. 461-155: Teeth of a dentary.