6.1" Eurypterus Sea Scorpion Fossil Eurypterid Silurian 420 Mil Yrs Old New York Stand Nontronite and freshwater ecosystems of the

and freshwater ecosystems of the Paleogene period

The unique placement of its thigh muscle beneath the skin created the impression that its leg detached at the knee

Over 13 million years

corals would later recover

Torosaurus was a herbivorous ceratopsid dinosaur from the Late Maastrichtian stage of the Cretaceous Period

6.1" Eurypterus Sea Scorpion Fossil Eurypterid Silurian 420 Mil Yrs Old New York Stand Nontronite and freshwater ecosystems of theLocation: Buffalo, New York, Bertie Green Formation Weight: 2 Pounds 15. 5 Ounces Dimensions: 7 Inches Long, 3. 9 Inches Wide, 1. 2 Inches Thick (Plate) Sea Scorpion Dimensions: 6. 1 Inches Long, 3 Inches Wide Comes with a Free Stand. Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Upper Silurian, 420 Million Years old The Eurypterid, often called a sea scorpion, was a dominant arthropod of the Paleozoic era,