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11,000 BCE
13,000 years ago
Smilodon
"The Saber toothed tiger" has had many theories floating around it and it went extinct 13,000 years ago. -
10,000 BCE
12,000 Years Ago
Miracinonyx also known as the american cheetah went extinct 12,000 years ago. This amazing creature lived within coastal savannas, open forests, Appalachian mountain stream valleys, and high mountain meadows. While it is estimated to weigh approximately 150 lb. With a body length of 5.6 ft and then a tail length of three feet. These statistics are extremely similar to current cheetahs.
(Normal Cheetah Picture) -
9700 BCE
11,700 Years Ago
Camelops which is also known as the "american camel" is said to have gone extinct around the end of the Pleistocene era. They were estimated to be 20% larger in weight than modern camels at 1764 lb. While their water carrying capacity as modern camels are said to do has not been proved. -
9000 BCE
11,000 years ago
Short Faced Bear
On all four feet the bear's shoulders would be 5 1/2 feet to 6 feet high. On two legs it would stand 11 to 12 feet tall. It is estimated to be able to run 40 miles per hour and it was estimated to weigh over 1,500 pounds. -
9000 BCE
11,000 Years Ago
Glyptodon was a armored megafauna which is approximated to weigh 4409 pounds or 2000 kilograms. They also included bone rings around their tail and a bone plate on their skull to protect the rest of their body. -
8000 BCE
10,000 years ago
Casteroides
They could grow to be up to 2.2 Meters long. There is no evidence of this "giant beaver" building dams. However there is evidence of the plants having less nutrients and nitrogen. Resulting in the beavers needing to eat more plants. This only worsens the quality even more. As this goes on eventually the ecosystem would collapse resulting in their extinction. -
2200 BCE
4,200 years ago
Ground Sloth
While these sloths died out in North America ten thousand years ago I am including their actual extinction. Many ground sloths had migrated to the Cuban islands. These large beasts were herbivores much like sloths today however by the name they obviously did not climb trees. -
2000 BCE
4,000 Years Ago
Mammoth: About 1.8 million years ago, the mammoth was able to take advantage of low sea levels and crossed through into North America on a temporary land bridge across the Bering Strait. While a fun fact is the existence of "dwarf mammoths" found on islands and generally from California's Channel Islands. These beasts only were four to six feet a the shoulder! -
Period: 200 BCE to 13,000 BCE
Ancient Creature Extinction Dates in North America
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Humans
While not extinct any mammal over 100 lbs or 44 kg may be considered megafauna. This is only in the timeline for a fun fact!
