Cenozoic Gallery, Cretaceous Alberta, Cretaceous Garden, Palaeozoic Era, and Terrestrial Palaeozoic. The Cretaceous Alberta exhibit features a diorama of an Albertosaurus pack inspired by 22 specimens found in a bonebed in Alberta, as an homage to Joseph Tyrrell, who first discovered the dinosaur. Several exhibits are also organized by locale, or focused on a specific fossil-bearing deposit, such as the Burgess Shale exhibit. The Grounds for Discovery exhibit displays specimens found from commercial and industrial digs. The world's most well-preserved thyreophora is situated within the Grounds for Discovery exhibit, a fossil of a Borealopelta found by oil sand workers at the Athabasca oil sands. Other exhibits that display specimens from the museum's fossil collection includes the Dinosaur Hall, Fossils in Focus, and Triassic Giants. Dinosaur Hall houses over thirty mounted dinosaur skeletons including specimens of an Albertosaurus, Camarasaurus, Triceratops, and a Tyrannosaurus, including Black Beauty, the fourteenth-most complete skeleton of a Tyrannosaurus in the world. Fossils in Focus is an exhibit that typically displays specimens of interest for the museum's research program. Triassic Giants is an exhibit dedicated to Elizabeth Nicholls, the museum's former curator of marine reptiles, and houses a specimen of a Shonisaurus, the world's largest marine reptile. Along with exhibits that are primarily concerned with the exhibition of specimens and dioramas, the museum also has two exhibits related on palaeontology, Foundations, and Preparation Lab; the latter exhibit allowing visitors to watch technicians as they prepare fossils for exhibits or research. Other exhibits in the museum includes the Cretaceous Garden, which is designed to mimic the Albertan environment during the Cretaceous era by planting living relatives of the vegetation that grew in Alberta during that era. Opened in 2019, the Learning Lounge is the museum's newest exhibit, and serves as the museum's interactive and hands-on exhibit, and includes a bronze statue of an Albertosaurus, and interactive displays on how dinosaurs ate, moved, and interacted with other organisms. Collection As of 2020, the museum's collection held over 350 holotypes, and approximately 160,000 cataloged fossils; providing the museum with the largest fossil collection in Canada. As of November 2021, the museum's collection holds five Guinness World Records due to its unique collection of fossils; including the best-preserved Borealopelta, and a Albertonectes fossil that has the longest neck recorded. Items from the collection are either used for research, or for museum exhibits. Approximately 0.5 per cent of the collection are placed