The crinoid Synbathocrinus in the Middle Devonian Traverse Group of Michigan

Geahča maid

• Trilobites of the Devonian traverse group of Michigan.
  Dahkki: Stumm, Erwin Charles
  Almmustuhtton: (1953)
• Corals of the Devonian Traverse group of Michigan. 3.
  Dahkki: Stumm, Erwin Charles
  Almmustuhtton: (1950)
• Devonian Rocks and Lower and Middle Devonian pelecypods of Guangxi, China, and the Traverse Group of Michigan.
  Almmustuhtton: (1986)
• Species of the crinoid Dolatocrinus from the Middle Devonian Dock Street Clay of Michigan.
  Dahkki: Kesling, Robert V.
  Almmustuhtton: (1963)
• Two new Crinoids of the family Periechocrinitidae from the Middle Devonian Thunder Bay Limestone of Michigan.
  Dahkki: Kesling, Robert V.
  Almmustuhtton: (1964)