One of the "Ice Age" (aka Pleistocene) era prehistoric creatures introduced in Zoo Tycoon: Dinosaur Digs is the "Giant Tortoise". In real life, as mentioned in its in-game description, its name is Meiolania.

Strangely enough, Dinosaur Digs depicts the Giant Tortoise as a tundra-dwelling reptile, perhaps to give it parity with its fellow Pleistocene/"Ice Age" animals such as the Woolly Mammoth, Sabre-Tooth Tiger (aka Smilodon) and Woolly Rhino, that all share the Tundra biome. In real life, the Meiolania actually lived in warmer, sub-tropical habitats such as prehistoric Australia.