238 GEOLOGICAL NOMENCLATURE 
regarded as equivalent to those in Lancaster township, New 
Brunswick, described and held to be of Devonian age,” adding 
that several typical Horton fossils, such as Lepidodendron cor- 
rugatum and Cyclopteris acadica are common to the Riversdale 
and Union rocks and to the Devonian of New Brunswick. 
In the following year, however, he states that so far as the 
faunas are concerned they clearly indicate a Carboniferous facies 
for the New Brunswick Devonian, the rocks of Harrington 
River, Parrsboro, Riversdale, Union and Horton Bluff. The 
only proof adduced for this radical change, and the addition of 
15,000 feet of strata beneath the Limestone to the already 
enormously developed Carboniferous of Nova Scotia, is that of 
certain fossils, assumed to have a definite range, in regard to 
some of which he is surely mistaken. For “the protolimuloid 
crustacean, usually referred to the Carboniferous system ” is on 
the contrary* also found associated with such characteristic 
Lower Devonian forms as Pterygotus, Coccosteus, Pterichthys 
and Glyptolepis ; Hstheria is not “all the world over recognized 
as Carboniferous”’ any more than Pterivnea is peculiar to the 
Devonian ; Leave occurs in Pennsylvania in rocks regarded by 
most geologists as Devonian; and Professor Marsh has described, 
from the Devonian, amphibians as highly developed as the 
Dendrerpeton found by Sir William Logan at Horton Bluff in 
1841 and by Dr. Ami, at Parrsboro in 1898, the affinities of 
which the latter regards as Permian. 
d 
Collections of fossil plants from these rocks in Nova Scotia 
and New Brunswick were examined by Mr. David White of the 
United States Geological Survey in 1898, and by Mr. R. 
Kidston of Stirling, Scotland, in 1899, who came to almost 
the same conclusions on perfectly independent grounds. Their 
views are given at length by Dr. Whiteaves in his “ Address on 
the Devonian System in Canada,” and may be thus summarized : 
(1) The Horton series is nearly contemporaneous with the 
Pocono formation of the eastern United States and the lower 
* Ottawa Naturalist for January, 1900, Vol. VIII, No. 10, p. 256. 
