At just long , 80 centimetres tall ( 31 in ) , and weighing just 30 kilograms ( 66 lb ) , `` Staurikosaurus '' was tiny in comparison to later theropods like `` Megalosaurus '' .
At just 2.25 m , 80 centimetres tall ( 31 in ) , and weighing just 30 kilograms ( 66 lb ) , `` Staurikosaurus '' was tiny in comparison to later theropods like `` Megalosaurus '' .