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A Whale Is Born (65 Mya)
Whales are believed to have started becoming present during the cretacious era. -
Pakicetid (60 Mya)
This is one of the whale's OLDEST ancestors. Traits from pakicetid has been transferred to modern whales believe it or not. The poisitioning of the earbone and molars were the traits transferred over to today's modern whales. It lived near the prihistoric pakistanian waters. -
Ambulocetus (50 Mya)
Ambulocetus was the second step in the whale evolution. He was known as the "missing link", living on land and water. He was a carnivore, 9 feet long. He had triangular molars such as the pakicetid did. Their inner ear was re-developed naturally, or through evolution of the pakicetid so that he could hear under water. -
Rodhocetus (45 Mya)
Rodhocetus contained traits of a aquatic AND land animal. It swam using its flipper-like feet and long tail which had been evolutionized from the last 2 species. The Nasal openings begain to move up the skull slowly, making what's known as its famous "blow hole". -
Basilosaurus (38 Mya)
He was 50 feet long, and a sea mammal. It represents an "eel like" branch of the whale family. He was originally mistaken as a lizard but furthur investigation of fossils uncovered information. Basilosarurus is a word meaning "King Lizard", so people had mistaken it for a lizard. It lived in only water, but could not dive into deep waters. -
Squalodon (20 Mya)
This was a short-lived species in the whale revolution. It lived in warm waters. It had large teeth. -
Cetotherium (15 Mya)
It's an ancestor of the baleens. It was smaller than the modern-day baleens. They were hunted by the prehistoric megladon, a 50-foot shark. -
Modern Whale
Modern-whales today are the closest relative of the hippopotamus. Today's whales are divided into three groups. Although there is 3, there is a WHOLE species of whales even maybe yet to be discovered!
