Showing 1 - 20 results of 22 for search 'Ehlers, George Marion, 1891-', query time: 0.23s Refine Results
  1. 1
    Corals of the Devonian Traverse group of Michigan /
    by Ehlers, George Marion, 1891-
    Published 1949
    Book
  2. 2
    Cyrtina hamiltonensis (Hall) and a new species of this brachiopod genus from New York.
    by Ehlers, George Marion, 1891-
    Published 1963
    Book
  3. 3
    Ordovician and Silurian strata from well core in Schoolcraft County, Michigan /
    by Ehlers, George Marion, 1891-
    Published 1967
    Book
  4. 4
    Two new crinoids from the Devonian of Michigan /
    by Ehlers, George Marion, 1891-
    Published 1925
    Book
  5. 5
    New brachiopods from the Warsaw formation of Wayne County, Kentucky /
    by Ehlers, George Marion, 1891-
    Published 1926
    Book
  6. 6
    Discovery of a Hamilton fauna in southeastern Michigan /
    by Ehlers, George Marion, 1891-
    Published 1927
    Book
  7. 7
    Cylindrophyllum panicum (Winchell) and Cylindrophyllum hindshawi, sp. nov., Tetracoralla from the Traverse group of Michigan /
    by Ehlers, George Marion, 1891-
    Published 1932
    Book
  8. 8
    Revision of Alexander Winchell's types of Brachiopods from the middle Devonian Traverse group of rocks of Michigan /
    by Ehlers, George Marion, 1891-
    Published 1934
    Book
  9. 9
    A new eurypterid from the upper Devonian of Pennsylvania /
    by Ehlers, George Marion, 1891-
    Published 1935
    Book
  10. 10
    Revision of E. A. Strong's species from the Mississippian Point au Gres limestone of Grand Rapids, Michigan /
    by Ehlers, George Marion, 1891-
    Published 1944
    Book
  11. 11
    Pachyphyllum vagabundum : a new coral from the Upper Devonian strata of New York.
    by Ehlers, George Marion, 1891-
    Published 1949
    Book
  12. 12
    Spongophyllum missouriense : a new coral from the Middle Devonian Callaway limestone of Missouri /
    by Ehlers, George Marion, 1891-
    Published 1952
    Book
  13. 13
    The type species of Spinocyrtia Fredericks and new species of this brachiopod genus from southwestern Ontario /
    by Ehlers, George Marion, 1891-
    Published 1955
    Book
  14. 14
    Francis de Castelnau's Essai sur le systeme silurien de l'Amerique septentrionale and the status of his Spirifer huroniensis /
    by Ehlers, George Marion, 1891-
    Published 1957
    Book
  15. 15
    Leioptera rafinesquii Hall and a new species of the genus from the Thedford-Arkona region of southwestern Ontario /
    by Ehlers, George Marion, 1891-
    Published 1959
    Book
  16. 16
    New species of the brachiopod Cyrtina from the Middle Devonian Hamilton strata of southwestern Ontario /
    by Ehlers, George Marion, 1891-
    Published 1975
    Book
  17. 17
    Stratigraphy of the Niagaran series of the Northern Peninsula of Michigan /
    by Ehlers, George Marion, 1891-
    Published 1973
    Book
  18. 18
    Two new genera of stricklandid brachiopods /
    Other Authors: “...Ehlers, George Marion, 1891-...”
    Book
  19. 19
    Occurrence of the Collingwood formation in Michigan /
    by Ruedemann, Rudolf, 1864-1956
    Published 1924
    Other Authors: “...Ehlers, George Marion, 1891-...”
    Book
  20. 20
    Some Middle Devonian stromatoporoids from Michigan and southwestern Ontario : including types described by Alexander Winchell and A. W. Grabau /
    Other Authors: “...Ehlers, George Marion, 1891-...”
    Book
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