Five feet long and 25-50 pounds, ate fish and lived in the rivers of modern day North America and western Europe. Survived the mass extinction in 65,000,000 BC along with many of its relatives.
55,000,000 BC - Present
The modern day crocodile, which includes the saltwater, Nile, and American variants. They are spread throughout the world with various adaptations for specific climates and habitats.
23,000,000 BC - 40,000 BC
9 feet long and 500 pounds. Had very long legs unlike the modern crocodile's short legs. The crocodile continuously gets smaller due to environmental changes.
4,200,000 BC - Present
Very close relative of the modern day crocodile, large skull with a small raised rim in front of the eyes. Most likely hunted early human. Lived in the Turkana basin in Kenya and may be the largest known true crocodile.
Killed off 90% of life on Earth.
Largest mass extinction to ever.
Killed off 76% of life on Earth.
Killed the archosaurs with the exception of the crocodiles.
Killed off 75% of life on Earth.
Mass extinction currently active. Primarily caused by humans.
May prove to be more devastating than the Cretaceous-Tertiary Extinction.
Hunted to Near Extinction
1950 AD - 1960 AD
Humans started hunting the American Alligator for its hides, almost went extinct.