Ключевые слова: alluvial, ancient, archaeologist, artifact, assistant, bone, brush, cenozoic, clean, deposits, desert, dinosaur, discovered, discussion, doctor, evidence, evolution, excavation, expedition, explorer, extract, femoral, field, find, fossil, fossilized, ground, history, link, male, men, mesozoic, missing, paleontologist, paleozoic, research, researcher, sample, sandstone, scientist, shovel, soil, stone, tibia, two,