IODP SEDIS - Thesaurus -

Rochester Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Silurian
	....Middle Silurian
	.....Rochester Formation
RT	Ontario
	Pennsylvania
	New York
	Maryland
	West Virginia
	Clinton Group
	Keefer Sandstone
SN	Includes Keefer Sandstone Member, Decew Waterlime Bed.