Hadrosaur Caudal (Tail) Vertebra | Judith River Formation | Montana clear dimensions: 22" x 20" x

dimensions: 22" x 20" x 3" thick

metallic mineral made of iron and sulfur (FeS₂)

Its modes of formation and relationship to calcite are both curious and intriguing

the bone preservation is excellent with no restoration

natural glass formed from terrestrial debris ejected during a meteorite impact

Hadrosaur Caudal (Tail) Vertebra | Judith River Formation | Montana clear dimensions: 22" x 20" xHadrosaur sp. Late Cretaceous (~74 MYO) Judith River Formation Montana, USA Specimen approx. size: 3. 5" x 3" x 2. 25" The vertebral fractures are a result of geologic processes, which have been remedied through the use of glue for stabilization. Hadrosaurs, often called "duck billed dinosaurs," are a family of ornithopod dinosaurs (family Hadrosauridae) that thrived during the Late Cretaceous period. They are among the most well known and successful