Revised lithostratigraphy
PERMIAN-TRIAS-JURASSIC LITHOSTRATIGRAPHICAL UNITS (BELGIUM)
(version of 2001 for the Trias-Jurassic of the Belgian Lorraine)
PERMIAN LITHOSTRATIGRAPHIC UNITS, MALMÉDY GRABEN (BELGIUM)
PERMIAN LITHOSTRATIGRAPHIC UNITS, Campine basin and Roer Valley Graben (NE BELGIUM)
TRIASSIC AND JURASSIC LITHOSTRATIGRAPHIC UNITS (BELGIAN LORRAINE)