North American Land Mammal Ages
66 - 0.0114 Ma
Geologic Time
Phanerozoic
Cenozoic
Quaternary
Holocene
Pleistocene
Late Pleistocene
Middle Pleistocene
Calabrian
Gelasian
Neogene
Pliocene
Piacenzian
Zanclean
Miocene
Messinian
Tortonian
Serravallian
Langhian
Burdigalian
Aquitanian
Paleogene
Oligocene
Chattian
Rupelian
Eocene
Priabonian
Lutetian
Ypresian
Paleocene
Thanetian
Selandian
Danian
Mesozoic
Cretaceous
Late Cretaceous
Maastrichtian
Age
Rancholabrean
Irvingtonian
Blancan
Hemphillian
Clarendonian
Barstovian
Hemingfordian
Arikareean
Whitneyan
Orellan
Chadronian
Duchesnean
Uintan
Bridgerian
Wasatchian
Clarkforkian
Tiffanian
Torrejonian
Puercan
