IODP SEDIS - Thesaurus -

Choptank Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....middle Miocene
	......Choptank Formation
RT	Virginia
	Maryland
	Chesapeake Group
SN	In Chesapeake Group. E Maryland and Virginia.