The Fauna of the St. John Group. 363 



in Cape Breton, the author is able to indicate the position 

 of some of the faunas which lie at higher levels than those 

 hitherto observed in the Acadian Cambrian rocks. 



Of the true Oleni no examples have • yet been found in 

 Acadia, but the fauna of the upper part of the Lingula 

 Flags (=the upper part of Eegio A of Angelin) is present 

 both in the St. John basin and in Cape Breton. In the 

 former area the fossils are found in calcareous nodules, 

 "lentiles," etc., and beside a Ctenopyge allied to C. spec- 

 tabiiis, there are several species of Brachiopods (Kutor- 

 gina, Orthis, etc). In Cape Breton, the measures are fine 

 shales, with calcareous layers, and contain Peltura scara- 

 beoides, Sphceropthalmus alatus, etc. In the Kennebecasis 

 basin, near St. John, there are also beds with brachiopods 

 and trilobites belonging to the Middle or Upper Cambrian. 



The following list will show what European horizons 

 have been recognized and what are still unknown in 

 Acadia : 



Fauna with Ceratopyge , Unknown. 



Do. Peltura Cape Breton- 

 Do. Ctenopyge St. John Basin. 



Do. Olenus Unknown. 



Do. Paradoxides Forchammeri .... do. 

 Do. P. Abenacus (near Tessini) .... St. John Basin. 

 Do. P. Eteminicus (near rugulosus) do. 



Do. of earlier date (probably the equi- 

 valent of that holding P. Kje- 

 rulfi) »■•< do. 



The fauna of the Potsdam Sandstone, which may be 

 regarded as equivalent to that of the Ceratopyge beds, has 

 not been recognized in the Acadian region. Above the 

 Ceratopyge beds are found in Europe the shales containing 

 the first of the true graptolitic faunas, and with this, or after 

 this, come in the trilobites of the Second Fauna. The deep 

 water faunas noted in the above noted list as missing may 

 be accounted for by the shallow water beds in the St. John 

 basin, there being two masses of such beds in the sediments 

 that were accumulated in this basin. 



