1893. J Geology and Paleontology. 471 
The lower Lias, having certain forms of undeniably European 
facies, occurs in western and southwestern Nevada, and perhaps in 
California east of the crests of the Sierra. These faunas are older than 
those found at Mount Jura. 
It is obvious that the Jura occurs in widely separated patches, and 
that, so far as now known, Mount Jura exhibits a larger number of frag- 
ments of the series of the Jurassic system than any other locality in 
the United States. (Bull. Geol. Soc. Am., Vol. 3, 1892.) 
The Post-Laramie Beds of Middle Park, Colorado.—Mr. 
Whitman Cross, in a paper read before the Colorado Scientific 
Society in October, 1892, points out the unconformities that exist 
between the Middle Park Beds of Colorado and the underlying rec- 
ognized Laramie formations, and calls attention to the difference in 
lithological characters. A study of specimens collected at different 
points show that a large series of andesite rocks strongly resembling 
those that constitute the Denver conglomerates take part in this for- 
mation. The Lignitic beds also resemble those of the Denver beds. 
In regard to the fossil plants Mr. Cross finds that 12 out of 21 species 
from the Middle Park beds occur in the Denver beds. These facts, 
the author believes, justifies him in correlating the Middle Park beds 
with the Denver, and he agrees with Mr. R. T. Hill in assigning them 
to the Post-Laramie group. 
It has been suggested by Mr. J. B. Hatcher,' that in view of the fact 
that at least two species of Agathaumas have been described from the 
Denver beds, that it would be well to take into account the evidence 
from the vertebrate fauna before settling definitely the age of the beds 
under discussion. (Proceeds Col. Sci. Soc. 1892). 
Marine Pliocene Beds of the Carolinas.—The tables of the 
Molluscan fauna of the Waccamaw and Croatan Beds of the Carolinas 
recently published by Dr. Dall, establish the presence of genuine 
Pliocene beds in both the Carolinas. The Pliocene of Tuomey and 
Holmes is shown to be based on a confusion of species belonging to at 
least two horizons, and hence the classifications based upon the 
supposed characters of this non-existent fauna may now be consigned 
to oblivion. (Trans. Wagner Free Inst. 1892.) 
Geological News.—General.—Mr. Ralph S. Tarr has called 
attention to the resemblance between the terraces now forming on the 
1Amer. Journal Sci., Feb., 1893. 
