Fossilworks: Gateway to the Paleobiology Database

ammonites

Gateway to the Paleobiology Database

North American Land Mammal Ages

Interval	Maximum correlate	Minimum correlate	Ma

Irvingtonian	Early/Lower Pleistocene	Middle Pleistocene
			1.8

Blancan	Zanclean	Gelasian
			4.9

Hemphillian	Tortonian	Zanclean
			10.3

Clarendonian	Serravallian	Tortonian
			13.6

Barstovian	Langhian	Serravallian
			16.3

Hemingfordian	Burdigalian
			20.6

Harrisonian	Chattian	Aquitanian
			24.8

Monroecreekian	Chattian
			26.3

Geringian	Rupelian	Chattian
			30.8

Whitneyan	Rupelian
			33.3

Orellan	Rupelian
			33.9

Chadronian	Priabonian
			38

Duchesnean	Bartonian
			42

Uintan	Lutetian
			46.2

Bridgerian	Ypresian	Lutetian
			50.3

Wasatchian	Ypresian
			55.4

Clarkforkian	Thanetian
			56.8

Tiffanian	Selandian	Thanetian
			60.2

Torrejonian	Danian
			63.3

Puercan	Danian
			65

Authorizer: J. Alroy Enterer: J. Alroy

Continent: North America Rank of each interval: age/stage

Basis of scale: paleontological

Reference: J. Alroy 2000

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