156 Canadicui Record of Science. 



As evidence of the similarity of forms peculiar to the 

 Eo- Carboniferous of Colchester and Pictou Counties and 

 the Coal Measures of the same region, let us take the 

 following forms, noted on page 181 of the " Summary 

 Report of tlie Geological Survey Department for 1898." 



Insecta. — The Neuropterous insect, whose wing was 

 obtained in the I. C. R. cuttings east of Riversdale and 

 Campbell's Siding, is referred to a Carboniferous genus 

 by Prof. Charles Brongniart, of Paris. 



Phyllopoda. — The numerous specmens of Leaia and 

 Esthcria, from the shales of the Riversdale formation 

 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 referred to the Coal Measures.* 

 This genus was abundant in early Carboniferous times, as 

 may be gathered from those specimens which were 

 obtained by me in the red, black and grey shales of the 

 Union and Riversdale formations of ISTova Scotia and 

 referred to the Eo-Carboniferous. 



Crustacea. — Several specimens of a new genus and 

 new species of one of the Podophthalmata and Xiphosura 

 occur in tbe Harrington River and Riversdale collections 

 in Colchester County. These Crustaceans are highly 

 characteristic of the Carboniferous system in Europe and 

 America, and their occurrence at this horizon, together 

 with their generic characters, point to them as prototypes 

 of higher forms found in the subsequent cycle of sedimen- 

 tation and in the series of sediments referred to the 

 Coal Measures above. One of these Crustaceans has been 

 recently described by Dr. Henry Woodward and Prof. T. 

 R. Jones of. London as Bellinurtfi grandcevus, and these 

 well-known authorities have no hesitation in placing tlie 

 sediments from which they came in the Carboniferous. 



* Miller, Cat. N. Anier. Pal. Foss. 



