[fso301]

Mammoth went extinct during the present half of the Holocene... aka, within recorded history.

[salmon76]

It would be cool to be a biblical paleologist and find that elusive T-Rex with a spear in its side

[SunkenCiv]

Definitely, not so long ago. On a couple of islands (California Channel islands, and Wrangel off Siberia) dwarfed versions survived until after the construction of Egypt's Great Pyramid.