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Measurements taken from Placerias fibulae UCMP 24884, a right fibula. (A) Posterior view; (B) Lateral view. Abbreviations: tc, tibial condyle; fc, femoral condyle; dc, distal condyle; pc, proximal condyle; ms, midshaft; DV, dorsoventral; ML, mediolateral. Scale bar equals 5 cm.
Source publication
Placerias hesternus, a Late Triassic dicynodont, is one of the last megafaunal synapsids of the Mesozoic. The species has a tusk-like projection on its maxillary bone, known as the caniniform process. This process has been hypothesized to be sexually dimorphic since the 1950s, however this claim has not been thoroughly investigated quantitatively....