Bones & Stones — On Natural History and Medicine

Unusual Timeline

Cambrian

Dimetrodon

Ordovician
Silurian

Cameroceras

Tanystropheus

Devonian
Carboniferous

Meganeurid

Basilosaurus

Smilodon

Permian
Triassic
Jurassic
Cretaceous
Paleocene

Dimorphodon

Eocene

Deinonychus

Oligocene
Miocene
Pliocene
Pleistocene
Holocene