250 Francs CFA Spinosaurus

Senegal is a member of the West African Economic and Monetary Union, meaning its coinage authority is technically shared across eight nations under the Banque Centrale des États de l'Afrique de l'Ouest — which makes issues like this one largely collector-market products with nominal legal tender status rather than anything approaching circulation coinage. The 0.5g gold format is a modern bullion-adjacent product aimed squarely at the fractional gold novelty market.

Spinosaurus itself was first described from Moroccan and Egyptian specimens, with the most significant skeletal revisions coming from a 2014 *Nature* paper that repositioned it as a semi-aquatic predator — a finding that upended decades of palaeontological consensus.