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Primitive Tyrannosaurids are members of Tyrannosauroidea that are closely related to Tyrannosauridae, but they are not part of the group. They are not part of an actual clade, but instead they are a grade of tyrannosauroids that are closely related to Tyrannosauridae.

Appalachiosaurus

Appalachiosaurus

Time PeriodEdit

They lived during the Late Cretaceous of North America and Asia.

MembersEdit

Definitive members include Alectrosaurus and Appalachiosaurus. Another possible member is Bistahieversor, though the latter may be a member of Tyrannosaurinae.

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