leg	site	hole	age mnemonic	auxiliary age mnemonic	top of section depth(m)	bottom of section depth(m)	special condition	age	auxiliary age	averaged age	age top of section(million years)	age bottom of section(million years)	average age(million years)t	data source
20	199		PLIOCENE	EOCENE	57.5	67.0		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	  1.8	 53.5	27.65	DSDP INITIAL REPORTS
20	199		MIDDLE MIOCENE	EOCENE	67.0	95.5	A LEGITIMATE AGE INVERSION	NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	 10.5	 53.5	   32	DSDP INITIAL REPORTS
20	199		MIOCENE	PALEOCENE	143.0	152.5	A LEGITIMATE AGE INVERSION	NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	    5	   65	   35	DSDP INITIAL REPORTS
20	199		LOWER MIOCENE	EOCENE	200.0	209.5	A LEGITIMATE AGE INVERSION	NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	   16	 53.5	34.75	DSDP INITIAL REPORTS
20	199		UPPER PALEOCENE		285.5	373.0		NO AGE GIVEN		NO AGE GIVEN	 53.5	   60	56.75	DSDP INITIAL REPORTS
20	199		LOWER PALEOCENE		373.0	401.0		NO AGE GIVEN		NO AGE GIVEN	   60	   65	 62.5	DSDP INITIAL REPORTS
20	199		UPPER MAESTRICHTIAN 		401.0	409.0		NO AGE GIVEN		NO AGE GIVEN	   65	 67.5	66.25	DSDP INITIAL REPORTS
20	199		LOWER MAESTRICHTIAN 	UPPER CAMPANIAN	437.5	447.0		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	 67.5	   74	70.75	DSDP INITIAL REPORTS