GUELPH FAUNA IN THE STATE OF NEW YORK 131 



sponding stratigraphically to Foerste's Louisville limestone farther south. 

 It contains no fossils. 



We may conclude therefore from the observations here recorded that 

 no strata which either lithologically or faunistically can be considered as 

 representing the Guelph have as yet been found in this state. 



Michigan. Hall has distinctly stated * that " at some points on the 

 northern shore of Lake Michigan . . . there occurs a light colored lime- 

 stone lying above the Niagara strata, containing generally few fossils and 

 among them some forms not unlike those of Gait." He also noted this fact 

 in his description of Pentamerus occidentalis. 2 The description 

 of the rocks of the Niagara group of the upper peninsula of Michigan 3 

 furnishes no additional facts concerning the distribution of these rocks in 

 that still little known region, but from the fact that the Niagara skirts the 

 entire south shore of the Upper Peninsula and that the Salina beds appear 

 along the water edge in some places, as in St Marys Bay, near Mackinac 

 strait, the probable position of the Guelph outcrops may be located. It is, 

 therefore, highly probable that the beds with Pentamerus and corals 

 mentioned by Rominger as occurring at many places on the north shore of 

 Lake Michigan represent actual Guelph beds. The occurrence of large 

 Murchisonias, mentioned by the same author, supports this supposition. 



Ohio. Guelph fossils are known to occur in Ohio. Hall and Clarke 

 cite the following brachiopods : 4 



Monomerella prisca Billings, Rising Sun, Wood co. ; M. new- 

 berry i H. & W., Genoa, M. or to n i H. & C., Rising Sun, Trimer- 

 ella acuminata Billings, near Hillsboro, T. grand is Billings, near 

 Sinking Spring, T. ohioensis Meek, Rising Sun, Genoa and Ottawa 

 county. 



In the second volume of Paleontology of Ohio Hall and Whitfield 



"Pal. N. Y. 1859. 3:30. 



2 Pal. N. Y. 1852. 2:342. 



3 Rominger, Dr C. Geol. Sur. Michigan. Paleozoic Rocks. 1873. v. 3, pt 2. p. 31. 



4 Pal. N. Y. 1892. v. 8, pt 1. 



