Eutyrannosauria
Eutyrannosauria is a clade of tyrannosauroid theropods whose distribution has been found in what is now Asia and North America. The clade consists of an evolutionary grade of tyrannosaurs such as "Appalachiosaurus", "Dryptosaurus", and "Bistahieversor" which led up to the family Tyrannosauridae. The group was named in 2018 by Delcourt and Grillo in their paper about possible southern hemisphere tyrannosauroids and the phylogeography of tyrannosaurs. Classification. Below is a phylogeographic cladogram of Eutyrannosauria after Voris "et al." (2020):