Locomotion is a fundamental aspect of palaeobiology and often investigated by comparing
osteological structures and proportions. Previous studies document a stepwise
accumulation of avian-like features in theropod dinosaurs that accelerates in the clade
Maniraptora. However, the soft tissues that influenced the skeleton offer another perspective
on locomotory adaptations. Examination of the pelvis for osteological correlates of hind limb
and tail musculature allowed reconstruction of primary locomotory muscles across …