Olsson A.A. (1932). Contribution to the Tertiary paleontology of northern Peru: Part 5, the Peruvian Miocene. Bulletins of American Paleontology. 19(68): 1-272, 24 pls.
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Olsson A.A.
1932
Contribution to the Tertiary paleontology of northern Peru: Part 5, the Peruvian Miocene