Classification of Frost and Langenheim, Jr. 1966

G. †Temnophyllum Walther 1928
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†Temnophyllum waltheri Frost and Langenheim, Jr. 1966
G. †Ladjia
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†Ladjia cordillera Frost and Langenheim, Jr. 1966
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†Rensselandia cloudi Frost and Langenheim, Jr. 1966
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†Stringocephalus nevadensis Frost and Langenheim, Jr. 1966