PBDB Interval Range

34.4 - 32 Ma

International Chronostratigraphic Timescale			Calcareous Nannoplankton Zones
				22.75
Paleogene	Oligocene	Chattian	NN1	23.04
			NP25	23.2
			NP24	26.8
			NP23	27.2
		Rupelian	NP23	27.3
			NP22	32
			NP21	32.9
	Eocene	Priabonian	NP21	33.9
			NP19-20/NP20/NP19	34.4
			NP18	36.7
			NP17	37.1
		Bartonian	NP17	37.71
		Bartonian	NP16	39.25
		Lutetian	NP16	41.03
			NP15	43.3
			NP14	46.7
		Ypresian	NP14	48.07
			NP13	48.8
			NP12	50.6
			NP11	52.9
			NP10	54.1
	Paleocene	Thanetian	NP9	56
			NP8	57.2
			NP7	57.6
			NP6	59
		Selandian	NP6	59.24
			NP5	59.4
			NP4	61.3
		Danian	NP4	61.66
			NP3	63.3
			NP2	64.5
			NP1	65.7
				66