PBDB Interval

Casamayoran age

56 - 47.9 Ma

The definition of this interval in the timescale South American Land Mammal Ages is taken from the following source:

J. J. Flynn and C. C. Swisher, III. 1995. Cenozoic South American Land Mammal Ages: correlation to global geochronology. Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication 54:317-333 view

The top age has been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

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

This interval is used in the definition of 24 collections

A total of 5024 collections with 39709 occurrences lie within this time span

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International Chronostratigraphic Timescale			South American Land Mammal Ages		North American Mammal Subages/Zones
Quaternary	Holocene	Meghalayan						0
		Northgrippian						0.0042
		Greenlandian						0.0082
	Pleistocene	Late Pleistocene	Lujanian		Sheridanian			0.0117
		Chibanian			Sheridanian			0.129
					Cudahyan/Sappan			0.21
			Ensenadan					0.3 *
		Calabrian						0.774
					Senecan/Rexroadian			1.4
			Sanandresian	Uquian †				1.7 *
		Gelasian	Sanandresian					1.8
Neogene	Pliocene	Piacenzian	Vorohuean					2.58
		Piacenzian	Chapadmalalan					2.9 *
		Zanclean	Chapadmalalan					3.6
			Montehermosan					3.7 *
			Montehermosan		Late Hemphillian/late Early Hemphillian/early Early Hemphillian			4.7
			Huayquerian					4.9 *
	Miocene	Messinian						5.333
		Tortonian						7.246
			Chasicoan					7.9 *
			Chasicoan		Late Clarendonian/Early Clarendonian			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 *
			Santacrucian		Late Hemingfordian/Early Hemingfordian			16.3
			Colhuehuapian		Late Hemingfordian/Early Hemingfordian			17.4 *
					late Late Arikareean/early Late Arikareean/late Early Arikareean/early Early Arikareean	Harrisonian		18.5
		Aquitanian						20.44
		Aquitanian	Deseadan					20.9 *
Paleogene	Oligocene	Chattian						23.03
						Monroecreekian		23.1 *
						Geringian		24.7 *
		Rupelian						27.82
			Tinguirirican					28.9 *
								29.5
	Eocene	Priabonian			Late Chadronian/Middle Chadronian/Early Chadronian			33.9
			Divisaderan		Late Chadronian/Middle Chadronian/Early Chadronian			35.9 *
								37
		Bartonian						37.71
		Bartonian			Late Uintan/Early Uintan			39.7
		Lutetian						41.2
			Mustersan					41.9 *
					Twinbuttean/Blacksforkian/Gardnerbuttian			46.2
		Ypresian						47.8
			Casamayoran					47.9 *
					Lostcabinian/Lysitean/Graybullian/Sandcouleean			50.5
							Cf3/Cf2/Cf1	54.9
	Paleocene	Thanetian	Riochican				Cf3/Cf2/Cf1	56
			Riochican				Ti6/Ti5/Ti4/Ti3/Ti2/Ti1	56.2
			Itaboraian					56.9 *
			Peligran					58.9 *
		Selandian						59.2
		Selandian					To3/To2/To1	60.9
		Danian						61.6
			Tiupampan					62.4 *
			Tiupampan				Pu3/Pu2/Pu1	63.8
								66