FOSSILS SPECIMEN: THYREOPHORAN DINOSAURS
Fossils are defined as any evidenceĀ of prehistoric life. There are two types of fossils: Body Fossils include remains of skeletal bones, shell, carapace, test and teeth. Trace Fossils are clues the organism existed such as foot prints, tracks, burrows and coprolites (fossil dung).
Phylum: Chordata – Class: Reptilia – Clade: Archosaur – Clade: Dinosauria – Order: Ornithischia – Suborder: Thyreophora “shield bearers”
(armored dinosaurs)
Lower Jurassic to Upper Cretaceous

Stegosaurus tail spike (Cast)
Upper Jurassic
North America