probably acting as a rudder in high-speed running

violently breaks the surface

Medidas aproximadas del Yutyrannus:

The T-Rex is a carnivorous dinosaur that could measure up to 12 meters long and weigh around 7 tons

with teeth forming an efficient cutting surface

Deinotherium giganteum Scale:1:20 probably acting as a rudderDeinotherium giganteum : The forgotten colossus of the age of giants Among the colossi that populated the Neogene landscapes, one of the most enigmatic and spectacular was Deinotherium giganteum , a proboscis that, although related to modern elephants, had an unmistakable appearance and unique anatomy. Its name, which means "terrible beast," does justice to its imposing size and presence, but also reflects the awe it has generated since its discovery