Comparison of dinosaur sizes
Dinosaur Weight Length
Spinosaurus [1] 21 tonnes 18 meters
Tyrannosaurus rex 18 tonnes 13 meters
Carcharodontosaurus 15 tonnes 14 meters
Giganotosaurus 14 tonnes 14 meters
Acrocanthosaurus [2] 7 tonnes 11 meters
  • 1 One study of Tyrannosaurus specimens with tooth marks in the bones attributable to the same genus was presented as evidence of cannibalism.
  • 2 Evidence of intraspecific attack were found by Joseph Peterson and his colleagues in the juvenile Tyrannosaurus nicknamed Jane