Species: angustifrons BORSUK-BIALYNICKA, 1989
Etymology: Latin, angustus, narrow, Latin, frons, 'front', a lizard with a narrow
front.
Holotype: ZPAL MgR-I/67
Locality: Khulsan, Nemegt Basin, Ömnögov (South Gobi), Mongolia.
Horizon: Barun Goyot Formation.
Biostratigraphy:
Age: Middle –Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..
Material: Skull.