Issued in 1990 by the Soviet Union, this 3 kopeck stamp depicts the Chalicotherium, an extinct genus of odd-toed ungulates that lived during the Miocene epoch. Part of a series showcasing prehistoric animals, the design presents the creature with its distinctive long forelimbs and clawed feet, set against a soft pale background with stylized foliage. The detailed artwork reflects the USSR’s strong tradition in scientific illustration and paleontological themes. A fine specimen for collectors interested in prehistoric fauna or Soviet natural history issues.