1) Fossilist 2) Gould 3) Leakey 4) Palaeontologist 1) Fossilist 2) Man of science 3) One who studies fossils 4) Palaeontologist 5) Scientist 6) Student of fossils 
• (n.) One versed in paleontology.
A paleontologist is a scientist who studies paleontology, the forms of life that existed in former geologic periods, chiefly by studying fossils. Paleo means old or ancient. Ontology is the study of existence (onto- means existence, -logy is the study of something). This -ist at the end means a person who is involved in the field. PALEOZOIC ERA The...
Individual practicing in the subject of paleontology.
Pa`le·on·tol'o·gist noun [ Confer French paléontologiste .] One versed in paleontology. 
A scientist who studies fossils to better understand life in prehistoric times.
[n] - a specialist in paleontology
a person that studies fossils
palaeontologist noun a specialist in paleontology
Scientists who study fossils.