Prehistoric Predators was a 2007 National Geographic Channel program based on different predators that lived in the past, including Smilodon and Megalodon. The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction. The program's investigative style was somewhat followed by the recent Discovery Channel documentary, Monsters Resurrected.
Pleistocene: 1.8 million-10,000 years ago
North America:
Smilodon fatalis, Arctodus (short-faced bear), Canis dirus (dire wolf), American lion, ancient bison, Megalonyx, Hagerman horse, Columbian mammoth, caribou (cameo), dromedary camel (cameo)
Miocene-Pliocene: 15-3 million years ago
South America, North America:
Kelenken, Glyptodon, Homalodotherium, Titanis, Canis edwardii, Smilodon gracilis, Equus
Miocene-Pleistocene: 20-2 million years ago
The Atlantic:
C. megalodon, Cetotherium, Squalodon, dugong, great white shark (cameo), green sea turtle (cameo)
Oligocene-Miocene: 32-19 million years ago
North America:
Archaeotherium, Hyaenodon, Dinictis, Mesohippus, Poebrotherium, Subhyracodon, Chalicotherium , Merycoidodon, Daeodon, Amphicyon
Monsters Resurrected
Prehistoric Predators Wikipedia (Text) CC BY-SA