Si 



^4. F. Foerste — Fossil localities in the early Paleozoics. 441 



geological maps, it had nevertheless in later years laid the basis 

 for its solution. East of Newfoundland in the back lots of 

 some of the last houses, on the southeast side of the hill, 

 fairly good and abundant Oriskany fossils had been found in 

 situ. A mile and a half south of Newfoundland, where the 

 road crosses the stream, the valley contains at various places 

 large bowlders with Helderberg fossils, suggesting that the 



ortheast, southwest valley here was filled in part by this series. 



ince the rocks all dip west the coarse conglomerates forming 

 the eastern side of Copperas and Kanouse Mountains must 

 be Oneida, the red sandstone above the same the Medina, 

 the underlying limestone, the Magnesian limestone, and 

 the basal sandstone, Cambrian, but instead of the term 

 Potsdam, it is necessary now, until further development to 

 call it Olenellus Cambrian. It is a quartzitic sandstone, from 

 10 to 15 feet thick and so far has not furnished fossils. • The 

 unconformity indicated by the absence of the Hudson River 

 shales east of Kanouse Mountain, and its increased emphasis 

 southwards, by the additional absence of the Magnesian lime- 

 stones and the Olenellus Cambrian sandstone, are facts already 

 appreciated at the time of the publication of the Final Report 

 of 1868. That part of the lower paleozoic section which is 

 exposed here, agrees with what has been found farther west, 

 in the area between the Archaean areas and the Kittatinny 

 Mountains. 



With these sections as exhibited in New Jersey and eastern 

 Pennsylvania, the Vermont lower paleozoic rocks show a strik- 

 ing similarity. That the sandstones along the western flanks 

 of the Green Mountain area were Olenellus Cambrian was 

 made sufficiently evident by the work of Mr. C. D. Walcott 

 (The Taconic System of Emmons, and the use of the name 

 Taconic in geologic literature.) The Stockbridge limestone of 

 Vermont corresponds to the Magnesian limestone of New 

 Jersey. At its top there is again a thin blue or dark blue 

 limestone bed, occasionally recurring, as in Pennsylvania, as 

 thin beds intercalated in the basal portions of the overlying 

 shales, and containing a Trenton fauna. As in New Jersey, 

 localities for fossils can be multiplied in this horizon almost 

 ad libitum. Localities discovered by the writer are mentioned 

 in the publication of Prof. J. E. Wolff (On the Lower Cam- 

 brian age of the Stockbridge limestones at Rutland, Vermont, 

 Bull. Geol. Soc. America, vol. ii, 1«91), and of Mr. T. N. 

 Dale (On Plicated Cleavage- Filtration, this Journal, vol. xliii, 

 p. 317). But these are only a part of the localities found 

 and none of the more southern ones are given. A few 

 are here appended, the most southern being near Danby 

 Four Comers, making thus a length of twelve miles from 



