PBDB Interval Range

Middle Jurassic epoch - Late Cenomanian subage

174.7 - 93.9 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 *
Jurassic	Late Jurassic	Tithonian	Late Tithonian	Middle Tithonian	145
		Tithonian	Early Tithonian	Middle Tithonian	146.3 *
		Kimmeridgian	Late Kimmeridgian		149.2
		Kimmeridgian	Early Kimmeridgian		152.2 *
		Oxfordian	Late Oxfordian	Middle Oxfordian/Early Oxfordian	154.8
		Oxfordian		Middle Oxfordian/Early Oxfordian	157.9 *
	Middle Jurassic	Callovian	Late Callovian/Middle Callovian/Early Callovian		161.5
		Bathonian	Late Bathonian/Middle Bathonian/Early Bathonian		165.3
		Bajocian	Late Bajocian		168.2
		Bajocian	Early Bajocian		168.6 *
		Aalenian	Late Aalenian/Middle Aalenian/Early Aalenian		170.9
	Early Jurassic	Toarcian	Late Toarcian		174.7
			Middle Toarcian		180.4 *
			Early Toarcian		182.9 *
		Pliensbachian	Late Pliensbachian/Early Pliensbachian		184.2
		Sinemurian	Late Sinemurian/Early Sinemurian		192.9
		Hettangian	Late Hettangian/Middle Hettangian/Early Hettangian		199.5
					201.4