Huge scarab with a thick chitinous shell and outstretched wings

Erect specimen of Arctodus simus , a prehistoric bear

Large specimen of a prehistoric bear

Large specimen of a prehistoric bear

Large specimen of a prehistoric bear

Large specimen of a prehistoric bear

Large specimen of a prehistoric bear

Prehistoric marsupial whose snout resembles a tapir

Prehistoric marsupial whose snout resembles a tapir

Prehistoric marsupial whose snout resembles a tapir

Prehistoric marsupial whose snout resembles a tapir

Prehistoric marsupial whose snout resembles a tapir

Prehistoric marsupial whose snout resembles a tapir

Early, prehistoric mammal relative with a high dorsal sail

Early, prehistoric mammal relative with a high dorsal sail

Early, prehistoric mammal relative with a high dorsal sail

Early, prehistoric mammal relative with a high dorsal sail

Early, prehistoric mammal relative with a high dorsal sail

Medium-sized herbivorous dinosaur with a thick cranial ridge

Medium-sized herbivorous dinosaur with a thick cranial ridge

Medium-sized herbivorous dinosaur with a thick cranial ridge

Medium-sized herbivorous dinosaur with a thick cranial ridge

Medium-sized herbivorous dinosaur with a thick cranial ridge

Large, saddled gecko with a curb in its mouth Giant Riding Gecko by tshenry1, licensed under CC BY 3.0 .