Typically, the artist is asked to document the smallest details of a fossil bone. The paleoillustrator should not hesitate to point out where additional preparation can be used to locate and define such important characters as sutures and foramina.
Source: wiktionary
Since most of what remains of dinosaurs is bones and footprints, a paleoillustrator must have a head for paleontology and anatomy as well.
Source: wiktionary
Instead of the norm, which is to cop illustrations from other sources, this volume is full of commissioned drawings by John Sibbick—one of the best paleoillustrators in the world.
Source: wiktionary