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Seventy million years ago
meaning "spiny skin
in reference to the provenance from the Hell Creek Formation
The Archiocidaris brownwoodensis sea urchins from the Brownwood Lake Spillway site were marine animals which died with their spines still attached
Brachiosaurus, thumb claw (Replica) Triceratops Additional shipping charges (other thanBrachiosaurus was one of the tallest and largest dinosaurs yet found. It had a long neck, small head, and relatively short, thick tail. It walked on four legs and, unlike most dinosaurs, its front legs were longer than its hind legs. These unusual front legs together with its very long neck gave Brachiosaurus a giraffe like stance and great height, up to 40 50 feet (12 16 m) tall. Brachiosaurus was about 85 feet (26 m) long, and weighed about 33 88