Type	Region
	Layer	Sect.4A, bed 12, Bogdanovsk Fm.
	Layer	Sect.4A, bed 14, Bogdanovsk Fm.
	Layer	Sect.4A, bed 15, Bogdanovsk Fm.
	Layer	Sect.4A, bed 23, Bogdanovsk Fm.
	Layer	Sect.4B, bed 32, Bogdanovsk Fm.