Some Triassic fresh-water gastropods from northern Arizona

Teng-Chien Yen

doi:10.2475/ajs.249.9.671

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Yen, T.-C. (1951). Some Triassic fresh-water gastropods from northern Arizona. American Journal of Science, 249(9), 671–675. https://doi.org/10.2475/ajs.249.9.671

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Some Triassic Fresh-Water Gastropods From Northern Arizona