TABLE 8. The stratigraphic changes of the ratio of total number of specimens of Repomys panacaensis and R. minor in the Panaca Formation. Ratio=R. minor/ R. panacaensis. The ratio decreases from the lower stratigraphic level to higher stratigraphic level.

	Locality	Repomys panacaensis	Repomys minor	Ratio
	Rodent Hill section:
	9602	128	7	5.5%
	9601	66	8	12.1%
	9504	104	18	17.3%
	Rodent Ravine section:-
	9619	12	0	0
	9616	8	2	25%
	9702	54	22	41%