Paleontology (US spelling) or palaeontology (UK spelling) is the study of the developing history of life on earth, of ancient plants and animals based on the fossil record, evidence of their existence preserved in rocks. This includes the study of body fossils, tracks, burrows, cast off parts, fossilized feces ("coprolites"), and chemical residues.

Wikimedia Commons has media related to Paleontology.

Wikisource has original works on the topic: Paleontology