Paleoart is any original artistic work that attempts to reconstruct or depict prehistoric life according to the current knowledge and scientific evidence at the moment of creating the artwork. The term paleoart was introduced in the late 1980s by Mark Hallett) for art that depicts subjects related to paleontology. These may be representations of fossil remains or depictions of the living creatures and their ecosystems. The term is a portmanteau of “art” and the ancient Greek word for old.

Source: https://en.wikipedia.org/wiki/Paleoart