Before revision: A paleontologist at work at John Day Fossil asses National Monument Paleontology ( ), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present).
After revision: asA paleontologist at work at John Day Fossil asses National Monument Paleontology ( ), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present).