Figure 4.

Tyrannosaurus mcraeensis compared with Tyrannosaurus rex. Postorbital of Tyrannosaurus mcraeensis (A₁) and Tyrannosaurus rex (A₂); Squamosal of (B₁) Tyrannosaurus mcraeensis and (B₂) Tyrannosaurus mcraeensis; Postorbital of (C₁) Tyrannosaurus mcraeensis and (C₂) Tyrannosaurus rex; prearticular of (D₁) Tyrannosaurus mcraeensis and (D₂) Tyrannosaurus rex; splenial of (E₁) Tyrannosaurus mcraeensis and (E₂) Tyrannosaurus rex; angular of (F₁), Tyrannosaurus mcraeensis and (F₂), Tyrannosaurus rex. Diagnostic characters: 1, low cornual process behind orbit; 2, anteriorly projected frontal/prefrontal articulation; 3, ventrally projected quadratojugal process; 4, upturned posteroventral margin of dentary; 5, weakly bowed prearticular; 6, anteriorly positioned splenial apex; 7, deep and posteriorly projected angular process; 8, shelf-like articulation overhanging dentary; 9, small splenial facet. Scale bars = 10 cm (A, B, D–F), 20 cm (C).