PBDB Interval Range

Morrowan age - Wolfcampian age

323.4 - 286 Ma

International Chronostratigraphic Timescale			Carboniferous of North America	Permian of North America
Quaternary	Holocene	Meghalayan				0
		Northgrippian				0.0042
		Greenlandian				0.0082
	Pleistocene	Late Pleistocene				0.0117
		Chibanian				0.129
		Calabrian				0.774
		Gelasian				1.8
Neogene	Pliocene	Piacenzian				2.58
	Pliocene	Zanclean				3.6
	Miocene	Messinian				5.333
		Tortonian				7.246
		Serravallian				11.63
		Langhian				13.82
		Burdigalian				15.98
		Aquitanian				20.45
Paleogene	Oligocene	Chattian				23.04
	Oligocene	Rupelian				27.3
	Eocene	Priabonian				33.9
		Bartonian				37.71
		Lutetian				41.03
		Ypresian				48.07
	Paleocene	Thanetian				56
		Selandian				59.24
		Danian				61.66
Cretaceous	Late Cretaceous	Maastrichtian				66
		Campanian				72.2
		Santonian				83.6
		Coniacian				85.7
		Turonian				89.8
		Cenomanian				93.9
	Early Cretaceous	Albian				100.5
		Aptian				113.2
		Barremian				121.4
		Hauterivian				125.77
		Valanginian				132.6
		Berriasian				137.05
Jurassic	Late Jurassic	Tithonian				143.1
		Kimmeridgian				149.2
		Oxfordian				154.8
	Middle Jurassic	Callovian				161.5
		Bathonian				165.3
		Bajocian				168.2
		Aalenian				170.9
	Early Jurassic	Toarcian				174.7
		Pliensbachian				184.2
		Sinemurian				192.9
		Hettangian				199.5
Triassic	Late Triassic	Rhaetian				201.4
		Norian				205.7
		Carnian				227.3
	Middle Triassic	Ladinian				237
	Middle Triassic	Anisian				241.464
	Early Triassic	Olenekian				246.7
	Early Triassic	Induan				249.9
Permian	Lopingian	Changhsingian				251.902
	Lopingian	Wuchiapingian				254.14
	Guadalupian	Capitanian		Capitanian		259.51
		Wordian		Wordian		264.28
		Roadian		Roadian		266.9
	Cisuralian	Kungurian		Leonardian	Cathedralian	274.4
		Kungurian			Hessian	282
		Artinskian			Hessian	283.3
		Artinskian		Wolfcampian	Lenoxian	286
		Sakmarian			Lenoxian	290.1
		Asselian	Bursumian †		Nealian	293.52
Carboniferous	Pennsylvanian	Gzhelian	Virgilian			298.9
		Kasimovian	Missourian			303.7
		Kasimovian	Desmoinesian			306
		Moscovian	Desmoinesian			307
		Moscovian	Atokan			312.8
		Bashkirian	Atokan			315.2
		Bashkirian	Morrowan			318.6
	Mississippian	Serpukhovian	Chesterian			323.4
		Visean	Chesterian			330.3
			Meramecian			335.4 *
			Osagean			342.9 *
		Tournaisian	Osagean			346.7
		Tournaisian	Kinderhookian			351.9 *
Devonian	Late Devonian	Famennian				358.86
	Late Devonian	Frasnian				372.15
	Middle Devonian	Givetian				382.31
	Middle Devonian	Eifelian				387.95
	Early Devonian	Emsian				393.47
		Pragian				410.62
		Lochkovian				413.02
						419.62