Author: OLSON, E.C.
Title: Fauna of Upper Vale and Choza: 1-5, 6, 11 & 12. [on fossil reptiles and amphibians, Permian]
Description: 1951-56. Fieldiana: Geology 10-11, 14, 25 & 26; pp. 89-128, 16 fig. pp. 147-166, 8 fig. & 313-328, 2+2 fig. Orig. issues with small libr. stamp on title page, very good.

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