Showing 1 - 9 results of 9 for search 'Ludvigsen, Rolf', query time: 0.22s Refine Results
  1. 1
    The Ordovician trilobite Pseudogygites Kobayashi in eastern and arctic North America /
    by Ludvigsen, Rolf
    Published 1979
    Book
  2. 2
    Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, western District of Mackenzie /
    by Ludvigsen, Rolf
    Published 1982
    Book
  3. 3
    The trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance /
    by Ludvigsen, Rolf
    Published 1978
    Book
  4. 4
    West Coast fossils : a guide to the ancient life of Vancouver Island /
    by Ludvigsen, Rolf
    Published 1997
    Book
  5. 5
    Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada /
    by Ludvigsen, Rolf
    Published 1989
    Book
  6. 6
    Silurian trilobites from the northern Yukon Territory /
    by Ludvigsen, Rolf, 1944-
    Published 1990
    Book
  7. 7
    West Coast fossils : a guide to the ancient life of Vancouver Island /
    by Ludvigsen, Rolf, 1944-
    Published 1994
    Book
  8. 8
    Life in stone : a natural history of British Columbia's fossils /
    Published 1996
    Other Authors: “...Ludvigsen, Rolf, 1944-...”
    Book
  9. 9
    Upper Cambrian to Lower Ordovician conodont biostratigraphy and biofacies, Rabbitkettle Formation, District of Mackenzie /
    by Landing, Ed
    Published 1980
    Other Authors: “...Ludvigsen, Rolf...”
    Book
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