A paleontology field school in the Bighorn Basin found an incredibly well-preserved fossil of an ancient anteater-like mammal this summer. The fossil is a Palaeanodon, a ground-dwelling insect eater the size of a cat that lived about 53-million years ago. Colorado State University Field School Instructor Kim Nichols discovered the skeleton and says the fossil is a very rare find because so much of the animal’s skeleton was found. Such small creatures are hardly ever discovered intact. Its excellent condition is also unusual, Nichols says.