Paleontologist n. : One versed in paleontology.

Example:
How does one become a Paleontologist?

Taxonomy
fossils, organisms, Paleontology, rocks, paleontologists, evolution, evidence, animals, fossil record, September 17, science, family tree, history of life, mass extinctions, mammals, dinosaurs, palaeontology, Trace fossils.

Defination from the web:
paleontologists to discover much of the evolutionary history of life, almost all the way back to when ... A paleontologist carefully chips rock from a column of dinosaur vertebrae. ...