Paraceratherium vs Spinosaurus I imagine how it would be a hypothetical struggle of two prehistoric animals from different eras. The largest land mammal "Paraceratherium" against the largest carnivorous dinosaur, the "spinosaurus". All this is pure speculation this confrontation never happened, these animals the time and space are separate. Dimensions suggest that spinosaurus was 4.5 meters high in the head, about 6 meters on the tip of his dorsal sail, 14 meters long on average (tip of snout to tip of tail), and 9 tons mass. The of Paraceratherium dimensions, had a height of five meters on the cross, 7 meters in the head, and eight meters long (e