found: Glut, D.F. Dinosaurs, the encyclopedia, 1997(Tyrannosaurus in Tyrannosauridae; Type species: T. tex. Other species: T. novojilovi, T. turpanensis, T. luanchuanensis)
found: American heritage dict.(tyrannosaur, also tyrannosaurus)
found: NCBI taxonomy browser, Aug. 20, 2019(Tyrannosaurus. Rank: genus. Family Tyrannosauridae)
found: The paleobiology database, via WWW, Aug. 20, 2019(Tyrannosaurus (tyrant lizard). Reptilia - Avetheropoda - Tyrannosauridae. Synonyms: Dinotyrannus, Dynamosaurus, Manospondylus, Stygivenator)
