PHYLLOCERAS VELLEDAE AMMONITES FROM MADAGASCAR. THESE AMMONITES HAVE AN INTRICATE, SMOOTH, THIN SHELLS COVERED WITH FINE GROWTH LINES (USUALLY WITHOUT RIBBING OR CONSTRICTIONS). THE PHYLLOCERAS ALSO HAVE COMPLEX LEAF SHAPED SUTURES. UPPER JURASSIC TO UPPER CRETACEOUS (160 - 65 MYA). CLEANED AND POLISHED BY THE ARTISANS IN MADAGASCAR. WHOLE AND SLICED PHYLLOCERAS VELLEDAE AMMONITES FOR YOUR COLLECTION.