n8 



the section plotted. The fauna is rich in turrillated 

 gastropods of the genera Melissosoa and Coelidium, 

 lamellibranchs of the genera Pterinea, Pteronitella, 

 Mytilarca, Carydium, Palaeoneilo and very profuse in 

 the brachiopods Leptaena, Stropheodonta, Strophonella, 

 Spirifer, Leptaenisca, Orthis, all of Helderberg species and 

 types, and Rensselaeria of widespread early Devonian 

 aspect. The beds are regarded as equivalent in fauna with 

 the Helderberg of New York and the sea which deposited 

 them, to have had direct connection with the interior 

 Appalachian sea by one of several well defined Devonian 

 sea ways parallel to the Appalachian axes. This channel or 

 trough carried a very different assemblage of Helderberg 

 species than the contemporary channel (St. Alban) in 

 northern Gaspe (see p. 92). 



Two miles southwest from this exposure, along the Eel 

 River road and closer to the body of the volcanic mass is a 

 second section of these sediments, 200 feet in length, in 

 which are 5 interbedded deposits of volcanic tuff and ashes, 

 in part carrying fossils. 



BIBLIOGRAPHY. 



1. Ells, R. W Geological Survey of Canada, 



1879-80. 



2. Ells, R. W Report on Geology of Northern 



and Eastern New Brunswick with 

 map New Brunswick sheet 3 S.W. 

 1880-82. 



3. Dawson, J. W Acadian Geology, 1891, p. 578. 



4. Billings, E (List of fossils, idem). 



5. Lambe, L. M Contributions to Canadian Paleon- 



tology, v. 4, 1 90 1. 



6. Ami, H. M Equisse Geol. du Canada, 1902. 



7. Clarke, John M The Dalhousie Formation: New 



York State Museum Mem. IX, 

 pt. 2, 1909, p. 1-51, pis. 1— 1 1. 



8. Clarke, John M Eruptive Contacts in the Marine 



Devonic Dalhousie beds: N.Y. 

 State Museum, Rept. Director, 

 1911, p. 125-128. 



