This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
Corresponding author (Name, Year)
Ref.: A. F. Foerste. 1924. Upper Ordovician faunas of Ontario and Quebec. Geological Survey of Canada Memoir 138(121):1-99
Ref.: A. F. Foerste. 1914. Notes on the Lorraine faunas of New York and the Province of Quebec. Bulletin of the Scientific Laboratories of Denison University 17(1):247-328