The Ghanaian Cedi has been the currency of Ghana since 1965, when it replaced the pre-decimal Ghanaian Pound.
Apart from the regular circulating coinage, the country has also authorised some foreign mints to issue commemorative and bullion coins under its jurisdiction. These are typically in standard bullion sizes, such as one ounce of gold (abbreviated as 1 oz Au, where "Au" comes from the Latin word for gold, Aurum).
The Aurochs is the sixth design in the Giants of the Ice Age coin series, which features eight large pre-historic animals; each coin in the series was issued in three different formats. The series was produced by German company Auragentum, with the coins struck by Leipziger Edelmetallverarbeitung (a division of Geiger Edelmetalle).
During the Pliocene the colder climate caused an extension of open grassland, which led to the evolution of large grazers such as wild bovines. The oldest aurochs (Bos primigenius) remains have been dated to about 2 million years ago, in India. The Indian subspecies was the first to appear. During the Pleistocene the species migrated west into the Middle East as well as to the east. They reached Europe about 270,000 years ago.
The proportions and body shape of the aurochs were strikingly different from many modern cattle breeds. For example, the legs were considerably longer and more slender, resulting in a shoulder height that nearly equalled the trunk length. The skull, carrying the large horns, was substantially larger and more elongated than in most cattle breeds. As in other wild bovines, the body shape of the aurochs was athletic, and especially in bulls, showed a strongly expressed neck and shoulder musculature.
The aurochs were one of the largest herbivores in post-glacial Europe, comparable to the European bison. During the Holocene, aurochs from Denmark and Germany had an average height at the shoulders of 155 - 180 cm in bulls. Aurochs from the Late Middle Pleistocene are estimated to have weighed up to 1,500 kg. Aurochs horns could reach 80 cm in length and between 10 and 20 cm in diameter. | 
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