4\" Allosaurus Fossil Spinal Cord Bone in situ Matrix Colorado CO COA 6438 for Sale

4\" Allosaurus Fossil Spinal Cord Bone in situ Matrix Colorado CO COA 6438 For Sale

$4\$
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4\" Allosaurus Fossil Spinal Cord Bone in situ Matrix Colorado CO COA 6438:
$159.95

Welcome to Pioneer Fossils!

A Certificate of Authenticity, whichhas a color photo on it of the exact item you purchased, will accompany thespecimen.

Here is a sturdy piece of a bone from an Allosaurus fragilis. Likely a bit of spinal cord. It was found naturally in-Situ in a hardened matrix. Found at Morrison Formation, northwest Colorado.

On both sides of the matrix are indentations (one per side) that likely were where 2 other bones once were (photo).

Allosaurus was the apex predator ofits time, living in the Jurassic, about 145-155 million years ago. This waslong before the first T Rex (66-70 million years ago). Most Allosaurus skeletons have been found inWestern North America in the Morrison Formation, particularly in Wyoming, Utah,New Mexico, South Dakota, and Colorado. Allosaurus, and other bones from theJurassic, are usually more “agatized” (more of a rock-like texture) thanCretaceous bones.

Allosaurus means “Different Lizard”because (at the time it was named) it was unique in having concave vertebrae.It was a carnosaurian theropod (meat eater).It was named in 1877 by Othniel Charles Marsh. Allosaurus is theJurassic State Fossil of Utah.

This fossil bone measures about 4 inches, and the longest measurement of the piece from tip to tip is about 5 inches. It weighs 1 lb. 4.25 oz. It is asingle, sturdy piece.

Allosaurus fragilis could grow to 30feet long (smaller than T Rex but still scary) and was a bipedal predator. Its’arms were longer than T Rex, each with 3 killer claws (T Rex had 2 claws oneach short arm).

King of the Jurassic, this is a greataddition to any dinosaur collection.