Genus: Lusitanosaurus de LAPPARENT & ZBYSZEWSKI, 1957
Etymology: In reference to Lusitania, Latin name for Portugal, and Greek, sauros, “lizard”: “Portuguese lizard”.

Species: liasicus de LAPPARENT & ZBYSZEWSKI, 1957
Etymology: In reference to the Liassic (Lias), early Jurassic.

Holotype: Univ. Lisbon.

Locality: Sao Pedro de Muel, Portugal.

Horizon:

Biostratigraphy:

Age: Sinemurian Stage, Middle Lias Epoch, Early Jurassic.

Material: Left maxilla with teeth.