IODP SEDIS - Thesaurus -

Toarcian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Jurassic
	....Lower Jurassic
	.....Toarcian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Jurassic
	....Lower Jurassic
	.....upper Liassic
	......Toarcian
NT	lower Toarcian
SN	Europe.