First issue in the amazing “Evolution of Earth” series. This new issue features the Trilobites in sensational 3.7 mm high relief. The coin is completely plated in black ruthenium and selectively in gold. Limited mintage to only 666 pieces worldwide. With luxury box and COA. New technology with 3.7 mm high relief. Country : Niue Year : 2016 Face value : 2 Dollars Metal : Pure Silver 0.999 Weight : 2 oz Size : 45 mm Quality : Antique finish Mintage : Only 666. Worldwide ¡¡¡ Certificate of Authencity : Yes Packaging: Included box and outer illustrated box. Serie : Evolution of Earth Name : Trilobites. (meaning “three lobes”) are a fossil group of extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic era before beginning a drawn-out decline to extinction when, during the Devonian, all trilobite orders except the Proetids died out. Trilobites finally disappeared in the mass extinction at the end of the Permian about 250 million years ago. The trilobites were among the most successful of all early animals, roaming the oceans for over 270 million years. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, an extensive fossil record was left behind, with some 17,000 known species spanning Paleozoic time. The study of these fossils has facilitated important contributions to biostratigraphy, paleontology, evolutionary biology, and plate tectonics. Trilobites are often placed within the arthropod subphylum Schizoramia within the superclass Arachnomorpha (equivalent to the Arachnata), although several alternative taxonomies are found in the literature. Trilobites had many lifestyles; some moved over the sea bed as predators, scavengers, or filter feeders, and some swam, feeding on plankton. Most lifestyles expected of modern marine arthropods are seen in trilobites, with the possible exception of parasitism (where scientific debates still exist). Some trilobites (particularly the family Olenidae) are even thought to have evolved a symbiotic relationship with sulfur-eating bacteria from which they derived food. 0-100 GRAMS 6,50 DOLLARS 0-100 GRAMS 6,90 DOLLARS 0-100 GRAMS 9,00 DOLLARS. 101-500 GRAMS 8,00 DOLLARS 101-500 GRAMS 12,65 DOLLARS 101-500 GRAMS 17,40 DOLLARS. BANK WIRE TRANSFER. If you have any doubt, please ask me. Get your own map of past buyers. The item “Evolution of Earth Trilobites $2 dollar 2oz Silver Gold Plated Coin Niue 2016″ is in sale since Monday, September 12, 2016. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\South Pacific”. The seller is “invercoin” and is located in Madrid, “””Madrid, Comunidad de”””. This item can be shipped worldwide.

• Circulated/Uncirculated: Uncirculated
• Year: 2016
• Composition: Silver
• Country/Region of Manufacture: Niue