This article is a list of events, and new taxa described in 1974 based on tyrannosaurs.
- Labocania-Labocania is a genus of theropod growing at 20 ft long. Although classified as a tyrannosaur, it is sometimes classified as a carcharodontosaur, or a abelisaur. It is one of the several dinosaurs of Baja California in Mexico.
- Stokesosaurus-Stokesaurus is one of the several proceratosaurs from North America. It was related to Proceratosaurus, and Guanlong. It lived alongside the large carnosaur Allosaurus.