PBDB Timescale

W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
A. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 view

There are 13 timescales which overlap this one. show

This timescale is used in the definition of 13391 collections

International Chronostratigraphic Timescale			Cenozoic Subepochs	North American Land Mammal Ages
Quaternary	Holocene	Meghalayan		Saintaugustinean	0
		Meghalayan		Santarosean	0.0004
		Northgrippian			0.0042
		Greenlandian			0.0082
	Pleistocene	Late Pleistocene	Late Pleistocene		0.0117
		Late Pleistocene	Late Pleistocene	Rancholabrean	0.014
		Chibanian	Middle Pleistocene	Rancholabrean	0.129
		Chibanian	Middle Pleistocene	Irvingtonian	0.21
		Calabrian	Early Pleistocene	Irvingtonian	0.774
		Calabrian		Blancan	1.4
		Gelasian			1.8
Neogene	Pliocene	Piacenzian	Late Pliocene		2.58
		Zanclean	Early Pliocene		3.6
		Zanclean	Early Pliocene	Hemphillian	4.7
	Miocene	Messinian	Late Miocene		5.333
		Tortonian			7.246
		Tortonian		Clarendonian	9.4
		Serravallian	Middle Miocene	Clarendonian	11.63
		Serravallian		Barstovian	12.5
		Langhian			13.82
		Burdigalian	Early Miocene		15.98
				Hemingfordian	16.3
				Arikareean	18.5
		Aquitanian			20.44
Paleogene	Oligocene	Chattian	Late Oligocene		23.03
		Rupelian	Early Oligocene		27.82
				Whitneyan	29.5
				Orellan	31.8
	Eocene	Priabonian	Late Eocene	Chadronian	33.9
		Priabonian	Late Eocene	Duchesnean	37
		Bartonian	Middle Eocene	Duchesnean	37.71
		Bartonian		Uintan	39.7
		Lutetian		Uintan	41.2
		Lutetian		Bridgerian	46.2
		Ypresian	Early Eocene	Bridgerian	47.8
				Wasatchian	50.5
				Clarkforkian	54.9
	Paleocene	Thanetian	Late Paleocene	Clarkforkian	56
		Thanetian	Late Paleocene	Tiffanian	56.2
		Selandian	Middle Paleocene	Tiffanian	59.2
		Selandian	Middle Paleocene	Torrejonian	60.9
		Danian	Early Paleocene	Torrejonian	61.6
		Danian	Early Paleocene	Puercan	63.8
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