Redescription of type specimens of species of the bryozoan genera Atactoporella, Homotrypa, and Homotrypella, from the Upper Ordovician rocks of the Credit River Valley, Ontario, Canada /

Lignende værker

• Redescription of type specimens of species of the bryozoan genera Monticulipora, Mesotrypa, Peronopora, and Prasopora, from the Upper Ordovician rocks of Toronto and vicinity, Ontario, Canada /
  af: Fritz, Madeleine A. (Madeleine Alberta), 1896-
  Udgivet: (1976)
• Redescription of type specimens of species of the Bryozoan genera Dekayia, Homotrypa, and Stigmatella from Upper Ordovician rocks along Workman's Creek, Ontario /
  af: Fritz, Madeleine A. (Madeleine Alberta), 1896-
  Udgivet: (1982)
• Ordovician fossils of north China /
  af: Grabau, Amadeus W. (Amadeus William), 1870-1946
  Udgivet: (1922)
• The Trepostomatous Bryozoan Amplexopora solitaria Dyer 1925 redefined as Heterotrypa solitaria (Dyer) /
  af: Fritz, Madeleine A. (Madeleine Alberta), 1896-
  Udgivet: (1981)
• Preliminary studies of the ultrastructure of selected Ordovician conodonts
  af: Barnes, Christopher R.
  Udgivet: (1970)