Gilmoreteius is an extinct genus of polyglyphanodontian lizard from the Late Cretaceous period in Mongolia.M. C. Langer. 1998. Gilmoreteiidae new family and Gilmoreteius new genus (Squamata, Scincomorpha): replacement names for Macrocephalosauridae Sulimski, 1975 and Macrocephalosaurus Gilmore, 1943. Comunicações do Museu Ciências e Tecnologia da PUCRS, Série Zoologia 11:13-18 It was probably herbivorous, possibly insectivorous. It was large for a polyglyphanodontian, with its skull being around 120 mm in length.
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