PBDB Interval

40 - 38.1 Ma

The definition of this interval in the timescale Planktic Foraminiferal Zones is taken from the following source:

B. S. Wade, P. N. Pearson, W. A. Berggren and H. Pälike. 2011. Review and revision of Cenozoic tropical planktonic foraminiferal biostratigraphy and calibration to the geomagnetic polarity and astronomical time scale. Earth-Science Reviews 104(1-3):111-142 view

There are intervals in 10 timescales which overlap this one. show

This interval is used in the definition of 20 collections

A total of 1904 collections with 23781 occurrences lie within this time span

International Chronostratigraphic Timescale			Planktic Foraminiferal Zones
				22.96
Paleogene	Oligocene	Chattian	P. pseudokugleri LOZ	23.04
			G. ciperoensis PRZ	25.2
			P. opima HOZ	26.9
		Rupelian	P. opima HOZ	27.3
			G. angulisuturalis/C.cubensis CRZ	28
			D. sellii PRZ	29.2
			T. ampliapertura HOZ	30.3
			P. naguewichiensis HOZ	32
			H. alabamensis HOZ	33.8
	Eocene	Priabonian	H. alabamensis HOZ	33.9
			G. index HOZ	34.3
			G. semiinvoluta HOZ	35.8
		Bartonian	G. semiinvoluta HOZ	37.71
			M. crassatus HOZ	38.1
			O. beckmanni TRZ	40
			M. lehneri PRZ	40.5
		Lutetian	M. lehneri PRZ	41.03
			A. topilensis PRZ	42.3
			G. kugleri/M. aragonensis CRZ	43.6
			G. nuttalli LOZ	44.4
			A. cuneicamerata LOZ	46.4
		Ypresian	A. cuneicamerata LOZ	48.07
			A. pentacamerata PRZ	50.4
			M. aragonensis/M. subbotinae CRZ	50.8
			M. formosa LOZ	52.3
			M. marginodentata PRZ	54
			P. wilcoxensis/M. velascoensis CRZ	54.5
			A. sibaiyaensis LOZ	55.4
			M. velascoensis PRZ	55.5
			G. pseudomenardii TRZ	55.9
	Paleocene	Thanetian		56
		Selandian		59.24
			M. angulata LOZ	59.4
			P. uncinata LOZ	61
			E. edita PRZ	61.4
		Danian	E. edita PRZ	61.66
			P. eugubina TRZ	64.8
			G. cretacea PRZ	64.97
			Abathomphalus mayaroensis	65
				66
				68.6