Here, we report on the important discovery of two well-preserved maxillae from the durophagous mosasaur Globidens alabamaensis Gilmore, 1912. The maxillae were found in the Ozan Formation embedded in the North Sulphur River channel near Ladonia, Fannin County, Texas, USA. Both maxillae preserve nearly complete tooth rows. In North America, Globidens is amongst the rarest mosasaurs, with remains consisting predominantly of isolated teeth and jaw fragments.