恐竜と先史時代

Tyrannosaurus

Velociraptor

Triceratops

Stegosaurus

Brachiosaurus

Spinosaurus

Ankylosaurus

Diplodocus

Allosaurus

Parasaurolophus

Pterosaur

Archaeopteryx

Plesiosaur

Woolly mammoth

Saber-toothed cat

Megalodon

Ice Age

Fossil

Paleontology

Trilobite

Ammonite

Cretaceous–Paleogene extinction event