// todo need optimize like in event.jsp. Add indexing or not indexing this page. The Modern Cenozoic: Today’s Shark (1 ene 20000000 año aC – 1 ene 0 año) (Cinta de tiempo)

The Modern Cenozoic: Today’s Shark (1 ene 20000000 año aC – 1 ene 0 año)

Descripción:

Most of the sharks on the planet have developed in the Cenozoic era, except for the truly ancient sharks from the Cretaceous period. The newest shark species to enter the water is the Hammerhead Shark. Hammerhead Shark evolution only dates back about 20 million years