Giganotosaurus was bigger than Tyrannosaurus Rex. elaborate
Argentinosaurus's heart, if it were proportionally similar to a giraffe's, would have needed to be the size of a small car to pump blood to its head. elaborate
Triceratops's frill wasn't just for show; it likely had large holes in it to reduce weight. elaborate
Ceratosaurus had a horn on its nose, and two smaller horns above its eyes, but its most distinctive feature was a prominent bony frill or crest along its neck and back. elaborate
Dreadnoughtus was so massive that even with a significant portion of its skeleton missing, scientists were still able to estimate its weight. elaborate