 |  |  |  |
Dinosaur skeletons at entrance of Earth Science Museum of Brigham Young University. Provo, UT. | Allosaurus fragilis of Late Jurassic (148 million years ago) era from Utah at BYU Earth Science Museum. Provo, UT. | Camptosaurus herbivore at BYU Earth Science Museum. Provo, UT. | Torvosaurus tanneri sauropod of Late Jurassic (148 million years ago) era found in Colorado at BYU Earth Science Museum. Provo, UT. |
 |  |  |  |
Skull of Torvosaurus tanneri at BYU Earth Science Museum. Provo, UT. | Cast of skull of Tyrannosaurus rex of Late Cretaceous (65 million years ago) era found in Montana at BYU Earth Science Museum. Provo, UT. | Detail of teeth of Tyrannosaurus rex at BYU Earth Science Museum. Provo, UT. | Skull of Prognathodon stadtmani giant marine reptile mosasaur of Late Cretaceous (82 million years ago) era found in Colorado at BYU Earth Science Museum. Provo, UT. |
 |  |  |  |
Monoclonius crassus horned dinosaur of Late Cretaceous era found in Montana at BYU Earth Science Museum. Provo, UT. | Gastonia burgei armored dinosaur of Early Cretaceous (120 million years ago) era found in Utah at BYU Earth Science Museum. Provo, UT. | Lower back armor plate of Gastonia burgei cast from University's original skeleton at BYU Earth Science Museum. Provo, UT. | Giant crocodile (Deinosuchus hatcheri) of Late Cretaceous (75 million years ago) era found in Texas at BYU Earth Science Museum. Provo, UT. |
 |  |  |  |
Original bones of Edaphosaur herbivore with sail of Middle Permian era found in Texas at BYU Earth Science Museum. Provo, UT. | Skull of Edaphosaur, a reptile which could chew its food, at BYU Earth Science Museum. Provo, UT. | Original bones of Dimetrodon carnivore with sail of Middle Permian era found in Texas at BYU Earth Science Museum. Provo, UT. | Skull of Dimetrodon at BYU Earth Science Museum. Provo, UT. |
 |  |  |  |
Giant Ground Sloth (Megatherium americanum) from Pleistocene (30,000 years ago) era found in Central & South America at BYU Earth Science Museum. Provo, UT. | Skull of Giant Ground Sloth at BYU Earth Science Museum. Provo, UT. | Brontotherium, primitive mammal related to horses & rhinoceros of Tertiary (Oligocene) at BYU Earth Science Museum. Provo, UT. | Split nose bones of Brontotherium related to horses & rhinoceros at BYU Earth Science Museum. Provo, UT. |
 |  |  |  |
Trilobite (Olenoides inflatus) from Utah at BYU Earth Science Museum. Provo, UT. | Trilobites (Utaspis marjumensis) & (Kochina vestita) of Cambrian era from Utah at BYU Earth Science Museum. Provo, UT. | Collection of Mesozoic cephalopods at BYU Earth Science Museum. Provo, UT. | Mesozoic cephalopods at BYU Earth Science Museum. Provo, UT. |
 |
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Ammonoid fossil, extinct relative of chambered nautilus, at BYU Earth Science Museum. Provo, UT. |
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