Those Freaky Therizinosaurs: Frustratingly Enigmatic Theropod Dinosaurs

Data from new studies presented at this site confirm that therizinosaurs are maniraptorans. These "transitional" therizinosauroid fossils include Alxasaurus and the recently named Beipiaosaurus inexpectus, which has "protofeather"- like filaments on its arms. The site furthur describes the morphology of this group and provides links for more study. Educational levels: High school, Undergraduate lower division, Undergraduate upper division