IODP SEDIS - Thesaurus -

Pretoria Group
BT	Chronostratigraphic Units
	.Precambrian
	..Proterozoic
	...Pretoria Group
RT	South Africa
	Botswana
	Transvaal Supergroup
SN	Proterozoic. South Africa and Botswana. In Transvaal Supergroup. Added to Thesaurus in 1993.