Genus: Pamizinsaurus REYNOSO, 1997
Etymology: From pamizintli (with corn on top), Nahuatl; and Greek, sauros, “lizard”: In reference to the bead-like osteoscutes covering the body. A testimony to “corn,” the basic food in Mesoamericna native cultures.

Species: tlayuaensis REYNOSO, 1997
Etymology: From tlayua (= place of darkness), Nahuatl. In reference to the name in the quarry where the skeleton was found.

Holotype: IGM 6854

Locality: Tlayua Quarry, Locality No. 2432 Cantera Tlayua-IGM, level Z/X, 2 km southeast of the Colonia Morelos, near Tepexi de Rodriguez, Puebla State, Mexico.

Horizon: Middle member, Tlayua Formation.


Age: Middle or Late Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: A severely crushed skeleton of a juvenile sphenodontian preserved in part and counterpart blocks. The skull is poorly preserved and most of the anterior limb elements lacking.
Note: Skin impressions from several different places on the skeleton.