-
500
Pakecitus
Lived in Pakistan about 60 million years ago. Had hooves, but had the position of ear bones in the skull like a whale and triangular molars. -
Jul 31, 650
Ambulocetus: 50 million years ago
Called the "missing link" between land and water
Was a carnivore that lived in both land and water. Had hind legs adapted for swimming but could also walk on land. Had triangular molars and the inner ear bond to be able to hear underwater. -
Jul 31, 710
Rodhocetus: 45 million years ago
Semi-aquatic organisms that had ankle bones, but also had underwater hearing capabilities. Had a long tail like a rudder and flipper feet. Had nasal drift (nasal openings in the upper part of the skull). Could also go on land -
Oct 29, 1200
Squalodon: 20 million years ago
ancestor of the toothed whales; lived in warm waters, had similar jaws to the Pakicetid -
Aug 28, 1500
Cetotherium: 15 million years ago
ancestor of the baleen whales (sperm, blue, humpback whales) -
Basilosaurus: 35 million years ago
Walking with Beasts the extinct link- were 50 feet long mammals of the sea. Seemed like a sea lizard because it swam like an eel because it was so long. They had a jawbone, ribs, and small hind limbs from its ancestors. It only lived in water, but couldn't dive deep into the water. -
Dorudon: 40 million years ago
fully aquatic, had small remnents of hind legs from its ancestors; no longer could the dorudon walk on land
