Reverse In the central part is a Tarbosaurus, to the left is its name in Latin: "Tarbosaurus bataar", below is the year of issue: "1993". Along the upper edge of the coin is the inscription: "PREHISTORIC ANIMALS", on the left in Spanish: "ANIMALES PREHISTÓRICOS", on the right in Arabic: "حيوانات ما قبل التاريخ".
Obverse In the upper part, along the edge of the coin, is the country name in Arabic: "REPÚBLICA ÁRABE SAHARAUI DEMOCRÁTICA" - "SAHRAWI ARAB DEMOCRATIC REPUBLIC". In the central part is the coat of arms of the SADR. Below is 100 Pesetas in Spanish: "100 PECETAS".