208 



Palaeozoic Fossils of the Northwest — Bierhauer. 



♦This list, prepared befce the territory of Dakota had been divided into South Da- 

 kota and Nor h Dakota, represt-nts the Palaeozoic of both the states. 



fRauff (ill Zeisschr. d. Deutschen Geol. Gesellchaft xl) regards the systemic position of 

 this group still entirely un-ettled. 



JThis genusis either synonymous with Stromatopora or very closely allied.— /S. A. Miller, 



