Description
This beautiful 1 oz Silver 999 coin is the first issue in the amazing “Evolution of Life” series. The evolution of life is celebrated with a new series featuring an Ammonite fossil in sensational high-relief. Ammonites superficially resemble snails and nautilus, the marine creatures were however more closely related to octopus and squid.
The reverse of the coin depicts an Ammonite fossil in sensational high-relief. The coin is also selectively red gold plated. On the bottom of the coin we find the name of the series and the year of issue. On the obverse of the coin we find Mongolia Coat of Arms, the weight, the silver fineness and some symbols of life.
Ammonite
Ammonites are an extinct group of marine invertebrate animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event.
Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geological time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs).
The name “ammonite”, from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams’ horns. Pliny the Elder called fossils of these animals ammonis cornua (“horns of Ammon”) because the Egyptian god Ammon (Amun) was typically depicted wearing ram’s horns. Often the name of an ammonite genus ends in -ceras, which is Greek for “horn”.
Country: Mongolia
Year: 2015
Face value: 500 Togrog
Metal: Silver 999/1000
Weight (g): 31.1 (1 oz)
Diameter (mm): 38.61
Quality: Antique Finish
Mintage (pcs): 999
Certificate COA: Yes
Box: Yes
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