Livres associés

Palaeoecology of a well-preserved crinoid colony from the Silurian Rochester shale in Ontario

New crinoids from the Chicago area

Upper Devonian and Niagara Crinoids

A monograph on recent and fossil Crinoidea with figures and descriptions of some recent and fossil allied genera. [Pt. 1-8]

• The North American Crinoidea camerata.
  Auteur(s): Springer, Frank ,  Wachsmuth, Charles
• The North American Crinoidea camerata.
  Auteur(s): Springer, Frank ,  Wachsmuth, Charles
• On the crinoid genus Scyphocrinus and its bulbous root Camarocrinus (with 9 plates)
  

• The whalebone whales of the western North Atlantic compared with those occurring in European waters
  Auteur(s): True, Frederick William
• Statement by the Secretary.
  
• Statement by the Secretary.