550 L. Lesquereux—Lignitic formations of the Rocky Mountains. 
abundance, and everywhere in connection with the Lower 
Lignitic sandstone, I had to consider this fossil as a kind of 
leading species of this formation. But I positively remarked 
(p. 345 of Dr. Hayden’s Report) upon the great quantity 
of fucoidal remains in the Lignitic sandstone of the Rocky 
Mountains, as in the Eocene of Europe, comparing the distri- 
bution of this class of plants in both formations, It is not 
therefore this Halimenites only which is a diagnostic of the Hocene 
sandstone, but the prodigious quantity of the fucoidal remains 
of numerous species. And this character, when I saw it so dis- 
tinctly marked in the Raton Mountains, forcibly recalled to 
me the essential facies of the Mount Bolea and of the Flysch 
Eocene flora of Europe. ‘ 
In the same way Dr. Newberry has misapplied what I said 
of the great abundance of Sabal leaves, as indicating the 
Eocene age of the Lignitic. Contradictory to this assertion, he 
says, that Sabal and Palms are common enough in the Miocene. 
ho doubts it? We have Sabal leaves in the Pliocene of Cali- 
The third objection of Dr. Newberry is that Proj. Meek, 
‘arsh, Cope and Stevenson, guided by molluscous and vertebrate 
te found in the Colorado Lignite deposits, consider them 
Oreta 
ceous. ce 
‘hough these geologists have perhaps considered the lignites 
of Colorado as Cretaceous, I do not know that they have found, 
im support of their opinion, any paleontological evidence. rof. 
‘eek, according to his own statement, has not found any Cre- 
_* One Flabellaria, F. longirachis is described by Unger from a Cretaceous forma- 
/ hnsmannsdort in Austria, i and } F. chameerop ifolia Z Gépp., from the 
in of Silesia. di tinenshaid Dy Achiniper, they belong to a peculiar 
* 
