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Start Over Subjects Reptiles -- classification ✖Remove constraint Subjects: Reptiles -- classification Titles Descriptions of extinct batrachia and reptilia from the Permian Formation of Texas ✖Remove constraint Titles: Descriptions of extinct batrachia and reptilia from the Permian Formation of Texas Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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  • Descriptions of extinct batrachia and reptilia from the Permian Formation of Texas1