Description: Fossil Dinosaur Specimen Bone-DS26-Jurassic/Morrison Formation. DS-26 - this very rough-skinned piece with bold colors makes me actually Feel the dinosaur vibe; I can picture this gnarly creature charging after prey. I don’t often see pieces with such defined texture! Dark iron-colored scales with tan and white on three sides, and smoother texture on the fourth side with iron-color with some tan. It’s very eye-catching and adds an interesting piece to anyones collection. Shown both wet and dry. Small but hefty piece weighing 228.23 Grams. 2 1/2 to 3 Inches Tall X 2 to 2 1/2 Wide. The piece is curved across the left, front and right sides and more flat on the back. The bottom of the piece (which it can rest on and stand upright) is 1 1/2 Wide X 1 1/2 inch. Allosaurus is a genus of large carnivores theropod dinosaurs that lived 155 to 145 million years ago during the Late Jurassic epoch. The name Allosaurus means “different lizard” alluding to its unique (at the time of its discovery) concave vertebrae. It is derived from the Greek word (allos- meaning different or other.) One of the earliest fossil remains ascribed to this genus were made by paleontologist Othniel Charles Marsh in 1877. The genus has a complicated taxonomy, and includes at least three valid species, the best known of which is A. Fragilis. The bulk of Allosaurus remains have come from North America’s Morrison Formation, with fossils also known from Portugal. The discovery and early study of Allosaurus is complicated by the multiplicity of names coined during the Bone Wars ( a rivalry between two prominent paleontologists) during the late 19th century. The first described fossil in this history was a bone obtained in 1869, secondhand, by Ferdinand Vandeveer Hayden, the famous explorer whom later conducted the geological surveys that discovered Yellowstone, among other places. The piece came from Middle Park, near Granby Colorado. The locals had identified such bones as "petrified horse hoofs". Hayden sent his specimen to Joseph Leidy, who identified it as half of a tail vertebra, and tentatively assigned it to the European dinosaur genus Poekilopleuron. He later decided it deserved its own genus, Antrodemus. Antrodemus became the accepted name for this familiar genus for over 50 years, until James Henry Madsen (an American vertebrate paleontologist and geologist and main leader of excavations at the Cleveland-Lloyd Dinosaur Quarry in the 1960’s) published on the Cleveland-Lloyd specimens and concluded that Allosaurus should be used because Antrodemus was based on material with poor, if any, diagnostic features or locality information (for example, the geological formation that the single bone of Antrodemus came from is unknown.)
Price: 32 USD
Location: Moab, Utah
End Time: 2024-02-22T19:55:52.000Z
Shipping Cost: N/A USD
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All returns accepted: ReturnsNotAccepted
Country/Region of Manufacture: United States
