80 fossils and fossil casts on exhibit, including fish, a crocodile, turtle, bats, birds, insects and plants. A 13-minute video is shown about the fossils found at the site and what scientists have learned. Interactive exhibits let visitors create fossil rubbings to take home, and a computer program discusses fossils, geology and the current natural history of the monument. Activities During the summer, lab personnel prepare fossils in public. Summer activities also include ranger programs, hikes, paleontology and geology talks, and participation in fossil quarry collections for the park. A Junior Ranger program can be completed by children aged 5–12 (with exercises scaled to the child's age) in 3–4 hours. A highlight is hiking 3/4 mile up the butte to the dig, where interns from the Geological Society of America talk about their excavation and let children help them flake apart sedimentary deposits to discover fish fossils and coprolites. List of fossil species recovered at Fossil Butte National Monument Fish: Asterotrygon spp, an extinct stingray Diplomystus dentatus, an extinct ray-finned fish Knightia spp, an extinct fish related to herring and sardines Seven extinct species of perch Heliobatis radians, an extinct stingray Notogoneus spp, an extinct bottom-feeding fish Crossopholis magnicaudatus (Commons), a 1-meter (40 inches) long predatory paddlefish Asineops squamifrons, called 'mystery fish'- allocated its own family Asineopidae Two extinct species of the family Osteoglossidae Amphiplaga brachyptera, an extinct freshwater fish Two extinct species of the genus Hiodon Amphibians: Aleoamphiuma tetradactylum, an extinct omnivorous salamander Aerugoamnis paulus, an extinct frog Mammals: Coryphodon Onychonycteris finneyi and Icaronycteris index, bats Heptodon, an extinct tapir Apatemys chardini, a tree-dwelling mammal similar to the lemur Protorohippus, an early horse-like mammal Palaeosinopa didelphoides, an otter-like carnivore Hyopsodus wortmani 'tube sheep', a small omnivore L. popoagicum, an extinct odd-toed ungulate Birds: Frigate birds Pseudocrypturus cercanaxius, an extinct shoreline bird Gallinuloides wyomingesis, an extinct land fowl Primobucco mcgrewi, an extinct roller bird Four extinct species of parrot- Cyrillavis coldurnorum, Cyrillavis olsoni, Avolatavis tenens and Tynskya eocaena Reptiles: Afairiguana, an extinct anole Boavus idelmani, a small extinct snake Bahndwivici, Afairiguana avius and Bahndwivici ammoskius, extinct lizards Baptemys wyomingenis, an extinct river turtle Echmatemys wyomingensis, an extinct pond turtle Borealosuchus wilsoni and Tsoabichi greenriverenis, extinct crocodiles Three species of soft-shell turtles- Apalone heteroglypta, Axestemys byssinus and Hummelichelys guttata Baenidae, turtle Plants: Palm trees Cattails Gyrocarpus spp Lagokarpos Lacustris, a type of distinct 'winged fruit' plant Lagokarpos found in lake deposits