|The craniofacial skeleton of a subadult Albertosaurus libratus seen in dorsal view,
© Dino Pulerà. Labels emphasize the overall structure of the skull and are explained below. Carbon dust plate by Mr. Dino Pulerà.
LTFEN - Laterotemporal fenestra: In dorsal view, only the ventral part of this opening can be seen, where it is reduced to a narrow slot.