Protosiren fraasi eomaia Estas podrían haber servido como

Estas podrían haber servido como refuerzo estructural de la columna

6 metros y un peso estimado de 400 gramos

Edmontosaurus y Tyrannosaurus rex

Deinonychus are agile and coordinated

but unfortunately

Protosiren fraasi eomaia Estas podrían haber servido comoProtosiren fraasi was one of the earliest marine mammals in the sirenian group, ancestors of modern manatees and dugongs. It lived during the Middle Eocene , approximately 40 million years ago, and its fossils have been found in regions of North Africa and the Middle East, including Egypt and Pakistan. This genus represents a key intermediate stage in sirenian evolution, when these animals were transitioning from a semi aquatic to a fully marine life.