When Did the Basilosaurus Become Extinct?

Abrupt global cooling of the Earth's climate at the end of the Eocene coincided with changing ocean circulation. This led to the extinction of Basilosaurus and most archaic whales around 34 million years ago.

Is the Basilosaurus still alive?

Basilosaurus sp. Basilosaurus, sometimes known by its scientific synonym Zeuglodon, is a genus of ancient cetaceans that lived during the late Eocene, they are thought to have died out 33 million years ago, this was during the time the Eocene epoch ended and the Oligocene started.

Is Basilosaurus extinct?

Basilosaurus, also called Zeuglodon, extinct genus of primitive whales of the family Basilosauridae (suborder Archaeoceti) found in Middle and Late Eocene rocks in North America and northern Africa (the Eocene Epoch lasted from 55.8 million to 33.9 million years ago).