PBDB Interval

12.5 - 9.4 Ma

The definition of this interval in the timescale North American Mammal Subages/Zones is taken from the following source:

M. O. Woodburne. 1987. A prospectus of the North American Mammal Ages. In: Woodburne, M. O. (ed.), Cenozoic Mammals of North America. University of California Press, Berkelery, CA 285-290 view

There are intervals in 10 timescales which overlap this one. show

This interval is used in the definition of 19 collections

A total of 2213 collections with 22135 occurrences lie within this time span

International Chronostratigraphic Timescale			North American Mammal Subages/Zones	South American Land Mammal Ages
					1.4
					1.7
Neogene	Pliocene	Piacenzian	Senecan/Rexroadian	Vorohuean/Uquian	2.58 *
		Piacenzian		Chapadmalalan	2.9 *
		Zanclean		Chapadmalalan	3.6
				Montehermosan	3.7 *
			Late Hemphillian/late Early Hemphillian/early Early Hemphillian	Montehermosan	4.7
				Huayquerian	4.9 *
	Miocene	Messinian			5.333
		Tortonian			7.246
				Chasicoan	7.9 *
			Late Clarendonian/Early Clarendonian	Chasicoan	9.4
				Mayoan	9.9 *
				Laventan	10.9 *
		Serravallian			11.63
			late Late Barstovian/early Late Barstovian/Early Barstovian		12.5
				Colloncuran	13.7 *
		Langhian		Colloncuran	13.82
		Langhian		Friasian	15.4 *
		Burdigalian		Friasian	15.98
				Santacrucian	16.2 *
			Late Hemingfordian/Early Hemingfordian	Santacrucian	16.3
			Late Hemingfordian/Early Hemingfordian	Colhuehuapian	17.4 *
			late Late Arikareean/early Late Arikareean/late Early Arikareean/early Early Arikareean/Harrisonian		18.5
		Aquitanian			20.44
		Aquitanian		Deseadan	20.9 *
					23.03 *
					23.1
					28.9
					29.5