Lower Triassic Ammonoids of North America James Perrin Smith Published: 1932 Total Pages: 298 Get eBook
Lower Triassic Ammonoids of North America, &c James Perrin Smith Published: 1932 Total Pages: 199 Get eBook
Lower Triassic Ammonoids of North America, by James Perrin Smith. [U.S. Geological Survey Professional Paper 167.]. United States. Congress. House Published: 1931 Total Pages: 204 Get eBook
Lower Triassic Ammonoids of North America James Perrin Smith Published: 1932 Total Pages: 199 Get eBook
Lower Triassic Ammonoids of North America, by James Perrin Smith James Perrin Smith Published: 1932 Total Pages: 199 Get eBook
Biostratigraphic Classification of the Marine Triassic in North America Norman John Silberling Published: 1968 Total Pages: 72 Get eBook
Smithian (early Triassic) Ammonoid Faunas from Northwestern Guangxi (South China) Arnaud Brayard Published: 2008 Total Pages: 24 Get eBook
Geological Survey Professional Paper Geological Survey (U.S.) Published: 1931 Total Pages: 762 Get eBook
