The term "Kampanian" refers to a specific stage in the Late Cretaceous period, approximately 72 to 83 million years ago. It is characterized by significant geological and paleontological developments, including the formation of various sedimentary rock layers. The Kampanian stage is known for its rich fossil record, which includes a variety of marine and terrestrial organisms. In addition to its geological significance, the Kampanian is notable for the diversity of dinosaur species that existed during this time. Fossils from this period have been found in various locations worldwide, contributing to our understanding of the evolution of dinosaurs and their ecosystems. Key fossil discoveries include those of Tyrannosaurus rex and Triceratops.