Type	Region
	Layer	Chainman Shale, Eumorph. girtyi BZ
	Layer	Chainman Shale, unrecognized
	Layer	Chainman Shale,Eu.girtyi BZ
	Layer	Chainman Shale,Eu.rotuliforme BZ
	Layer	Chainman Shale,unit 9-13
	Layer	Ely Lmst., lower pt.