IN EASTERN CANADA AMI. 



171 



formations of Union and Riversdale, giving us the following 

 natural, though interrupted general succession of strata, in 

 descending order : 



As evidence of the similarity of forms peculiar to the Eo- 

 Carboniferous of Colchester and Pictou Counties and the Coal 

 measures of the same, let us take the different orders or groups 

 of fossil organic remains affording Pala3ontological evidence as 

 noted on page 181 of the " Summary Report of the Geological 

 Survey Department for 1898 and 1899." 



EVIDENCE FROM ANIMAL LIFE. 



Insecta Neuropterous insects have been discovered in the 

 shallow water deposits of Riversdale age, in a cutting on the 

 Intercolonial Railway east of Riversdale and Campbell's Siding, 

 about a mile and a half west of West River Station, and the 

 wing obtained and sent to the Museum d'Histoire Naturelles, is 

 referred to a Carboniferous genus by Prof. Brongniart, of Paris, 

 France a most eminent authority on the Fossil Insects of the 

 Carboniferous. 



Phyllopoda. The numerous specimens of Leaia and Estheria 

 from the Carbonaceous and other shales of the Riversdale form- 

 ation of Colchester, Pictou, and Cumberland Counties, are very 

 similar to the forms described from the Coal Measures of Pictou, 

 County, and also from the Coal Measures of the United States. 

 All the species of Leaia recorded in North America so far, are 



