PBDB Interval Range

254.14 - 251.4 Ma

International Chronostratigraphic Timescale			Mesozoic Subages
Triassic	Late Triassic	Rhaetian		201.4
		Norian	Sevatian	208.5
			Alaunian	213.2 *
			Lacian	216.7 *
		Carnian	Tuvalian	227
		Carnian	Julian	233.4 *
	Middle Triassic	Ladinian	Longobardian	237
		Ladinian	Fassanian	239.7 *
		Anisian	Illyrian	242
			Pelsonian	243.8 *
			Bithynian	244.7 *
			Aegean	245.5 *
	Early Triassic	Olenekian	Spathian	247.2
		Olenekian	Smithian	248.9 *
		Induan	Dienerian	251.2
		Induan	Griesbachian	251.4 *
Permian	Lopingian	Changhsingian		251.902
	Lopingian	Wuchiapingian		254.14
	Guadalupian	Capitanian		259.51
		Wordian		264.28
		Roadian		266.9
	Cisuralian	Kungurian		273.01
		Artinskian		283.5
		Sakmarian		290.1
		Asselian		293.52
				298.9