Browse Items (3 total) Tags: Paleogene Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Turtle Very small shell. Good shape. Few of the marginal plates missing. Oligocene. Tags: Animals, Brown, Cenozoic, Fossils, Geology, North America, Oligocene, Paleogene, Paleontology, Reptiles, Tan, United States, Wyoming Coprolite Tags: Animals, Cenozoic, Fossils, Geology, North America, Oligocene, Paleogene, Paleontology, Tan, United States, Wyoming Fish Oil shale. Tags: Animals, Black, Bony Fish, Brown, Cenozoic, Eocene, Fish, Fossils, Geology, North America, Paleogene, Tan, United States, Wyoming Featured Item Snail, Cone (Geography)