REPORT OF THE STATE PALEONTOLOGIST 1900 17 



At Dalhousie (X. B.) is a small area of sedimentary rocks iu- 

 closed between parallel apophyses of eruptives. These strata 

 and specially their fossil contents have received hitherto only 

 incidental mention but the fauna is remarkably profuse and well 

 preserved. These rocks have been also correlated with the 

 Helderbergian, and the very extensive suite of specimens which 

 I .obtained from there indicates that the fauna of the rocks is 

 doubtless properly correlated with our Lower Devonic, i. e. with 

 the Helderbergian and Oriskany formations of New York. The 

 collection made, which, with the exception of a similar one 

 in the Xational miuseum, is probably the only satisfactory repre- 

 sentation of this fauna to be found in the United States^ 

 contains, together with the species identified by the paleontolo- 

 gists of Canada, a notable number of undescribed or unidenti- 

 fied forms, and on this account is of special interest and 

 yalue. Considerable time was spent on the northern branch of 

 the Gasp^ peninsula, province of Quebec, between the Bay of 

 Gaspe and the Gulf of St Lawrence. Here is a remarkable series 

 of limestone beds, having a thickness of upward of 2000 feet, and 

 assigned by Logan, Billings and other Canadian geologists to a 

 geologic age corresponding with the Upper Siluric and Lower 

 Devonic of Kew York. Collections were made throughout the 

 peninsula with great care and a good series of the fossils obtained, 

 again including a very considerable number of species not recog- 

 nized by the Canadian geologists and not as yet described. 

 \Miile the earlier strata of this great thickness of deposits afford 

 evidence which permits their correlation with the Helderbergian 

 of New York, the upper beds of the series, which are profusely 

 filled with fossils, present a striking array of species in calcareous 

 environment identical with those occurring in the New York 

 development of the Oriskany fauna, and afford striking evidence 

 of the encroachment during this later period of the eastern 

 province on the confines of the marine interior province, while 

 during the preceding period represented by Helderbergian time 

 these marine provinces were more sharply restricted. I consider 

 these collections from the Gasp^ peninsula, together with those 



