Media type: E-Article Title: A New Rana from the Pliocene of California Contributor: Zweifel, Richard G. imprint: JSTOR, 1954 Published in: Copeia Language: Not determined DOI: 10.2307/1440323 ISSN: 0045-8511 Keywords: Animal Science and Zoology ; Aquatic Science ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: