IODP SEDIS - Thesaurus -

Navarro Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Upper Cretaceous
	.....Gulfian
	......Navarro Group
RT	Texas
	Escondido Formation
	Olmos Formation
SN	E Texas. Added to Thesaurus in 1985.