PBDB Interval Range

100.5 - 72.1 Ma

International Chronostratigraphic Timescale			Mesozoic Subages
Cretaceous	Late Cretaceous	Maastrichtian	Late Maastrichtian/Early Maastrichtian	66
		Campanian	Late Campanian/Middle Campanian/Early Campanian	72.1
		Santonian	Late Santonian/Middle Santonian/Early Santonian	83.6
		Coniacian	Late Coniacian/Middle Coniacian/Early Coniacian	86.3
		Turonian	Late Turonian/Middle Turonian/Early Turonian	89.8
		Cenomanian	Late Cenomanian/Middle Cenomanian/Early Cenomanian	93.9
	Early Cretaceous	Albian	Late Albian	100.5
			Middle Albian	106.2 *
			Early Albian	109.9 *
		Aptian	Late Aptian	113
		Aptian	Early Aptian	119.5 *
		Barremian	Late Barremian/Early Barremian	121.4
		Hauterivian	Late Hauterivian/Early Hauterivian	125.77
		Valanginian	Late Valanginian/Early Valanginian	132.6
		Berriasian	Late Berriasian	139.8
			Middle Berriasian	140.6 *
			Early Berriasian	142.7 *
				145