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TYRANNOSAURUS REX Dinosaur Tooth Coprolite Prehistoric Giants 2 Oz Silver Coin 1500 Francs Congo 2014


First coin of the new series “Prehistoric Giants” dedicated to the great predators of the prehistoric world. In this issue the T-rex with real fossilized feces (Coprolite) inserted in this 2 Oz pure 999 Silver antique finish oval coin. Very special package, the coin is housed in an elegant box with certificate and a real and genuine dinosaur tooth. Mintage extremely limited 2014 pcs worldwide.

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Tyrannosaurus Rex and the Coprolite
Tyrannosaurus rex was one of the largest meat-eating dinosaurs that ever lived. Everything about this ferocious predator, from its thick, heavy skull to its 4-foot-long (1.2-meter-long) jaw, was designed for maximum bone-crushing action. Fossil evidence shows that Tyrannosaurus was about 40 feet (12 meters) long and about 15 to 20 feet (4.6 to 6 meters) tall. Its strong thighs and long, powerful tail helped it move quickly, and its massive 5-foot-long (1.5-meter-long) skull could bore into prey. T. rex's serrated, conical teeth were most likely used to pierce and grip flesh, which it then ripped away with its brawny neck muscles. Its two-fingered forearms could probably seize prey, but they were too short to reach its mouth. Scientists believe this powerful predator could eat up to 500 pounds (230 kilograms) of meat in one bite. Fossils of T. rex prey, including Triceratops and Edmontosaurus, suggest T. rex crushed and broke bones as it ate, and broken bones have been found in its dung. Tyrannosaurus rex lived in forested river valleys in North America during the late Cretaceous period. It became extinct about 65 million years ago in the Cretaceous-Tertiary mass extinction.

A coprolite is fossilized feces. Coprolites are classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour (in this case, diet) rather than morphology. The name is derived from the Greek words kopros, meaning "dung" and lithos, meaning "stone". They were first described by William Buckland in 1829. Prior to this they were known as "fossil fir cones" and "bezoar stones". They serve a valuable purpose in paleontology because they provide direct evidence of the predation and diet of extinct organisms. Coprolites may range in size from a few millimetres to over 60 centimetres. Coprolites, distinct from paleofaeces, are fossilized animal dung. Like other fossils, coprolites have had much of their original composition replaced by mineral deposits such as silicates and calcium carbonates. Paleofaeces, on the other hand, retain much of their original organic composition and can be reconstituted to determine their original chemical properties, though in practice the term coprolite is also used for ancient human faecal material in archaeological contexts. In the same context, there are the urolites, erosions caused by evacuation of liquid wastes and nonliquid urinary secretions.

  • CountryCongo
  • Year2014
  • Face Value1500 Francs
  • MetalSilver
  • Fineness (purity)999/1000
  • Weight (g)62.2 (2 oz)
  • Size (mm)40 x 60
  • QualityAntique Finish
  • Mintage (pcs)2.014
  • Certificate (COA)Yes
  • Presentation case (box)Yes
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The coin's obverse depicts a beautiful T-Rex fully colored with its mouth open and the prehistoric world behind it. Just below the T-Rex a real insert of Coprolite, fossilized feces with the inscription of the series name “Prehistoric Giants”. On bottom of the coin the inscription “Tyrannosaurus Rex”. Around the central design this oval coin features some prehistoric icons as ammonites and ferns. The coin's reverse depicts the coat of arms of the Republic of Congo, the issue country and the face value.