Thomas Edgar Guensburg (Guensburg, Thomas Edgar)

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  Edhinodermata of the Middle Ordovician Lebanon Limestone, Central Tennessee
  by Thomas Edgar Guensburg
  Softcover, Paleontological Research Inst, ISBN 087710395X (0-87710-395-X)
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  The Oldest Known Crinoids (Early Ordovician, Utah) and a New Crinoid Plate Homology System
  by Thomas Edgar Guensburg, James Sprinkle
  Hardcover, Paleontological Research Institution, ISBN 0877104581 (0-87710-458-1)