J.-F Geys (1983)
RACHISOMA GIGASEI NOV. SPEC.: AN ADDITION TO THE ECHINODERM FAUNA OF THE MAASTRICHTIAN (UPPER CRETACEOUS OF BELGIUM)
Bulletin de la Société belge de Géologie, vol. 92 p. 255-259.
02755, 108, Lg, MEUSE2, 2, CRET, PAL
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