The Zeuglodon, or Basilosaurus, "King of the Reptiles",
lived during the Eocene
about 40 to 50 million years ago. It was an early, 44 toothed, 55 to 75 foot
long whale species with small hind legs. Zeuglodon remains have been found in North America and
Africa and it's Alabama's State Fossil.
The Zeuglodon has been extinct for about 37 million years.
Although you might want to keep your eyes open when swimming. Some
believe the large serpent sightings of Loch Ness Monster in Scotland, Lake Okanagan in Canada and other lakes around the
world may be descendants of the Zeuglocon or a related species.
was a large marine lizard, 20 to 45 feet long, which lived during the Cretaceous about 88
to 78 million years ago. It had lots of teeth and ate other marine creatures.
Fossils have been found in North America and New Zealand.
Ichthyosaurs were reptiles (not fish) that lived during the Triassic (208 to 248 million years ago) and became
extinct during the Cretaceous (65 to 146 million years ago) about 95 million
years ago. They measured up to 40 feet long, had strong jaws, sharp
teeth and big eyes to see their prey.
Early 3 Inch Shark
Dunkleosteus, a voracious carnivorous fish, lived about 400 million years ago.
It measured up to 11.5 ft long and had huge jaws with scissor-like cutting serrated, razor-sharp bones
instead of teeth. Its skull was was over 2 feet long. They were not sharks.
They ate sharks!
about 400 million years ago. It was about 30 feet long and weighed
over 2 tons. It probably was not agile and waited in the plants of the
sea floor to ambush its prey.