IODP SEDIS - Thesaurus -

Tongrian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Eocene
	.....upper Eocene
	......Tongrian
RT	Krosno Beds
	Lattorfian
	Sannoisian
SN	Lattorfian. Europe. Above Ludian (Eocene), below Rupelian. Also search Lattorfian.