IODP SEDIS - Thesaurus -

Interlake Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Silurian
	....Lower Silurian
	.....Llandoverian
	......Interlake Formation
RT	Saskatchewan
	Montana
	North Dakota
	Manitoba
SN	Located in the Williston Basin. Added to Thesaurus in 1989.