North America, Western United States, Montana, Cretaceous, 147 to 66 million years ago; North America, Western United States, Utah, late Jurassic, ca. 155 to 145 million years ago; North America, Yukon / Alaska, ca. millions of years old. This is a wonderful collection of minerals and fossils, including gold, a dromaeosaur tooth, and an allosaurus bone. The gold fleck is from eastern Alaska or Canadian Yukon gold deposits, probably near the Klondike River. The bone is from the carnivorous biped, Allosaurus, cut and polished into a sphere, the remarkable coloration a result of agatization - the bone material replaced with silica creating a marbled black, gray, and crystalline white surface. The tooth is from the theropod, Dromaeosauridae, better known as a raptor, and has a slightly curved profile and serrated edges from tip to root! Size allosaurus sphere: 1" Diameter (2.5 cm); tooth: 0.63" L x 0.3" W (1.6 cm x 0.8 cm); gold: 0.19" L (0.5 cm)
The dromaeosaurs are popularly known (especially in the movie "Jurassic Park") as "raptors," a group of fascinating extinct creatures. They were a group of meat-eating small to medium size bird-like theropod dinosaurs. Dromaeosaurs first evolved in the Early Cretaceous and survived right up to the end of the Late Cretaceous suggesting they were adaptable and capable hunters, surviving such a prolonged period yet, remaining virtually unchanged in overall design. Dromaeosaurs ranged from about the size of a small dog on up to 20 feet long with some remains of Utahraptor indicating this dromaeosaur exceeded 35 feet in length! They are theropods that possessed specialized features: a well-developed slashing talon on their second toe, a stiffened tail, and large grasping hands!
Gold was discovered by prospectors along the Klondike River region in the late 19th century, resulting in the Klondike Gold Rush from 1897 to 1898. Approximately 100,000 hopeful miners took flight to the Yukon and Alaskan wilderness, less than half made it to the area, only a few thousand even found gold, and a few hundred profited from their discoveries. Imaginably, the few that found gold probably only found flecks of this size!
Provenance: private Hagar collection, Wildwood, Missouri, USA
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#160018
Condition
Gold fleck is displayed in modern acrylic case. Tooth has nicks to peripheries and surface wear as expected with age and fossilization, and is displayed in a modern case. Allosaurus bone is cut and polished into a sphere. Stable surface fissures and abrasions, but intact with great coloration.