Figure 2 in Tyrannosaurs from the Late Cretaceous of western Canada

Figure 2 Albertosaurus libratus, median elements of the skull roof restored after USNM 12814. The area shown measures approximately 31C mm in length along the midline of the skull.Published as part of Russell, Dale A., 1970, Tyrannosaurs from the Late Cretaceous of western Canada in null, Ottawa :National Museum of Natural Sciences, Publications in Palaeontology, No. 1 on page 6, DOI: 10.5281/zenodo.104097