Product Details

We are proud to present a top-tier, museum-grade Ankylosaurid/Ankylosauris osteoderm armor plate from the renowned Late Cretaceous Lance Formation of Wyoming. Measuring just under 4 inches, this armor plate is not only large but exhibits nearly flawless symmetry, the best surface texture I’ve seen on any armor plate, and exceptional preservation—placing it confidently in the top 5% of all known specimens of its kind. This fossil represents one of the rarest and most sought-after elements of armored dinosaurs: the dermal armor plating that once protected these formidable tank-like herbivores from apex predators like T-Rex. These nodosaurid or ankylosaurid osteoderms served as bony shields embedded in the skin, forming a natural suit of armor. Their structure, density, and curvature varied by position and species—this piece likely came from the frontal skull region. See example photo. *Legally collected on private property. Wy. Authenticity and providence guarantee. **COA included**