IODP SEDIS - Thesaurus -

Chattian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Oligocene
	.....Chattian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Oligocene
	.....upper Oligocene
	......Chattian
SN	Europe. Above Rupelian, below Aquitanian (Miocene).