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
4	28		UPPER EOCENE		59.0	178.0		NO AGE GIVEN		NO AGE GIVEN	 37.5	   43	40.25	DSDP INITIAL REPORTS
4	28		MIDDLE EOCENE		178.0	354.0		NO AGE GIVEN		NO AGE GIVEN	   43	   49	   46	DSDP INITIAL REPORTS
4	28		UPPER CRETACEOUS		400.0	404.0		NO AGE GIVEN		NO AGE GIVEN	   65	  100	 82.5	DSDP INITIAL REPORTS