-
Vandenberghe N. (2006). "Disused
Paleogene regional stages from Belgium: Montian,
Heersian, Landenian, Paniselian, Bruxellian, Laekenian, Ledian,
Wemmelian and Tongrian"...
- of California. It
overlaps the
obsolete regional stages Landenian and
Heersian of Belgium. The Sézanne
flora is a
fossil ****emblage
preserved in freshwater...
-
retrieved 2025-01-15 "DISUSED
PALEOGENE REGIONAL STAGES FROM BELGIUM: MONTIAN,
HEERSIAN, LANDENIAN, PANISELIAN, BRUXELLIAN, LAEKENIAN, LEDIAN,
WEMMELIAN AND TONGRIAN"...