Leo George Hertlein [SEP] date of death
Leo George Hertlein
Leo George Hertlein (1898 – 1972) was an American paleontologist and malacologist who studied the Recent and fossil mollusks of the eastern Pacific Ocean. 
Biography.
Hertlein was born on a farm in Pratt County, Kansas. After graduating high school in Wichita, Kansas, he moved to the West Coast and entered the University of Oregon as a geology major. 
After graduating with a B.A., Hertlein enrolled as a graduate student at Stanford University. He received his doctorate in 1929. His dissertation was
. Part 1, Geology" with Leo George Hertlein. "Memoirs of the San Diego Society of Natural History", Volume II, 1944.
- "The Geology and Paleontology of the Marine Pliocene of San Diego, California. Part 2a, Paleontology" with Leo George Hertlein. "Memoirs of the San Diego Society of Natural History", 1960.
- " The Geology and Paleontology of the Marine Pliocene of San Diego, California. Part 2b, Paleontology" with Leo George Hertlein. "Memoirs of the