IODP SEDIS - Thesaurus -

Georgetown Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Lower Cretaceous
	.....Georgetown Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Comanchean
	.....Georgetown Formation
RT	Louisiana
	Texas
	Arkansas
	Washita Group
SN	Comanchean. In Washita Group. Central and S Texas, Arkansas, Louisiana. This term has multiple hierarchies. Added to Thesaurus in 1993.