Mamenchisaurus had one of the longest necks of any known dinosaur, proportionally longer than even the giraffe's. elaborate
Styracosaurus had a large bony frill and up to six long horns on its face, but its horns were not directly attached to the frill itself. elaborate
Daspletosaurus had a bony crest above its eyes, which likely played a role in species recognition or intraspecific combat. elaborate
Patagotitan mayorum, one of the largest known dinosaurs, was so big that its femur (thigh bone) was taller than a grown human. elaborate
Apatosaurus's neck wasn't as flexible as often depicted; it likely couldn't reach very high or bend very far. elaborate
T. Rex arms were so short, they couldn't even reach its mouth. elaborate