Humans arrive 13,000 radiocarbon years before present.
A major extinction episode terminates around 10,500 radiocarbon years before present. Few extinctions thereafter.

Human Migration



American Mastodon

Cuvier's Gomphothere

Giant Capybara

Giant Short-faced Bear

Long-legged Llama

North American Cheetah

North American Glyptodon

North American Horse

North American Pampathere

Sabertooth Cat

Shasta Ground Sloth

Stag-Moose

Steppe Bison

Woolly Mammoth

Yesterday's Camel