Dickinson, Alice (1954) First book of prehistoric animals, Franklin Watts, Inc., New York.
Easy to read, well-illustrated book for grade-school age.
Dunkle, D. H. (1957) The world of the dinosaurs, Smithsonian Institution, Washington, D. C.
An easy to understand, amply illustrated introduction to the dinosaurs (high school-adult level).
Fenton, C. L. (1937) Life long ago, The John Day Co., New York.
Very good for advanced grade and high-school age.
Heal, Edith (1930) How the world began, Thomas S. Rockwell Co., Chicago.
An account of the beginnings of life. For upper grade through high-school age.
Markman, H. C. (1954) Fossils, Denver Museum of Natural History, Denver, Colo.
A well-illustrated general survey of fossils. For adult-level readers.