IN EASTERN CANADA.—AMI. 173 
Dr. S. A. Miller, in his “ North American Geology and Pale- 
ontology,” containing that useful Catalogue of North American 
Paleozoic Fossils, does not record a single Amphibian from rocks 
older than the Carboniferous, and the genera Sawropus and 
Iylopus occurring in the Riversdale formation of Nova Scotia, 
are identical with and similar to those found in the Carbonifer- 
ons, or other regions of North America. 
Prof, James D. Dana, in his “ Manual of Geology,” Sir Arch- 
ibald Geikie in his “Text Book of Geology,” also, all the leading 
nomenclators and writers on North American or European 
Geology and Paleontology, agree in placing the genera Sawropus 
and Hylopws to which I have referred the footprints from 
Parrsboro and Harrington River, of Cumberland and Colchester 
County, from the Riversdale formation, as Carboniferous. 
Lamellibranchiata.—Of these the most conspicuous are the 
Anthracomye of Salter, which Sir William Dawson described 
under the name of Naiadites. These shells are abundant in the 
Coal Measures of the Joggins, Springhill, Pletou and Sydney 
Basins of Nova Scotia, also in the Pennsy]vania, Virginia and other 
coal areas of the United States, not to speak of their occurrence 
in the Carboniferons of England and France, and many other 
countries of Europe. They occur in bands in the Riversdale 
formation at Riversdale, and in numerous outcrops along the 
banks of the Harringtoh River, on the dividing line between 
Colchester and Cumberland Counties, and the term “ Naiadites 
Bands” or “ Naiadites Shales,’ which are usually associated 
with Ostracoda of the genus Carbonia, and other allied genera 
of Carboniferous affinity, is applicable to these Eo-Carboniferous 
bands. All writers on Geology and Paleontology, concur in 
placing these shells in the Carboniferous. All the species recorded 
from the United States are referred to the Coal Measures, whilst 
those from the Union and Riversdale formations of Colchester 
and Cumberland Counties in Nova Scotia, are, by the writer, 
placed in the Eo-Carboniferous, It will thus be seen that the 
palezentological evidence adduced in the geological collections so 
far obtained from the Riversdale formation of Nova Scotia, 
