PBDB Interval

37.71 - 33.9 Ma

The definition of this interval in the timescale Cenozoic Subepochs is taken from the following source:

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

There are intervals in 7 timescales which overlap this one. show

This interval is used in the definition of 1051 collections

A total of 3026 collections with 32720 occurrences lie within this time span

International Chronostratigraphic Timescale			Cenozoic Subepochs	North American Land Mammal Ages
					18.5
Paleogene	Oligocene	Chattian	Late Oligocene	Arikareean	23.03
		Rupelian	Early Oligocene	Arikareean	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
					66