Showing 1 - 11 results of 11 for search 'Mamay, Sergius H., 1920-', query time: 0.21s Refine Results
  1. 1
    Paleozoic origin of the cycads /
    Government Document Book
  2. 2
    Two new plant genera of Pennsylvanian age from Kansas coal balls.
    by Mamay, Sergius H., 1920-
    Published 1954
    Government Document Book
  3. 3
    Tinsleya, a new genus of seed-bearing callipterid plants from the Permian of north-central Texas /
    by Mamay, Sergius H., 1920-
    Published 1966
    Government Document Book
  4. 4
    Occurrence and significance of marine animal remains in American coal balls.
    by Mamay, Sergius H., 1920-
    Published 1962
    Government Document Book
  5. 5
    Russellites, new genus, a problematical plant from the Lower Permian of Texas /
    by Mamay, Sergius H., 1920-
    Published 1968
    Government Document Book
  6. 6
    Tinsleya, a new genus of seed-bearing callipterid plants from the Permian of north-central Texas /
    by Mamay, Sergius H., 1920-
    Published 1966
    Get full text
    Government Document eBook
  7. 7
    Two new plant genera of Pennsylvanian age from Kansas coal balls /
    by Mamay, Sergius H., 1920-
    Published 1954
    Get full text
    Government Document eBook
  8. 8
    Paleozoic origin of the cycads /
    by Mamay, Sergius H., 1920-
    Published 1976
    Get full text
    Government Document eBook
  9. 9
    Additions to the flora of the Spotted Ridge Formation in central Oregon /
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    Government Document eBook
  10. 10
    Additions to the flora of the Spotted Ridge Formation in central Oregon /
    Government Document Book
  11. 11
    Occurrence and significance of marine animal remains in American coal balls /
    Get full text
    Government Document eBook
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