Bone orientations and soft tissues movements of extinct theropods such as Tyrannosaurus rex cannot be studied directly. However, analyzing the movements of birds, the extant relatives of theropod dinosaurs, sheds light on what fossils do not tell us. X-ray Reconstruction of Moving Morphology (XROMM) was employed to explore variation in guineafowl locomotion. Analysis of mid-stance (mid-step) frames allowed us to constrain the number bone orientations possible during mid-stance. Mid-stance poses and their relationship with the ground reaction force are highly variable, possibly due to unavoidable disparities in bird hip height and pelvis pitch angle.
McLellan, Oliver,
"Skeletons reanimated: avian validation of tyrannosaur pose reconstruction"
(2014).
Summer Research Symposium.
Brown Digital Repository. Brown University Library.
https://doi.org/10.26300/jbr8-8v32
Each year, Brown University showcases the research of its undergraduates at the Summer Research Symposium. More than half of the student-researchers are UTRA recipients, while others receive funding from a variety of Brown-administered and national programs and fellowships and go …
