ri 
7 + 
ener Uist vate 
124 Scientific Intelligence. 
the P. minuta of the European Trias, but one of them strongly resem- 
bles the P. Bronnii of the ane although of larger dimensions. 
Prof. Rogers remarked upon the uncertainty which exists as to the true 
nature of the small shell-like tc. which being assumed as molluscs, 
have been referred to Bronn’s genus Posidonomya. But, whatever may 
be their zoological affinities, the sea now under consideration have 
great interest, as affording furt means not only of comparing to- 
gether the mesozoic belts of North Carolina and Virginia, above refer- 
red to, but of approxim see more justly than heretofore to the age of 
the so-called New Red Sandstone, or laser rocks which form the pro- : 
longed belt lying further towards the we 
n the report of Prof. Emmons, cabiahed in the autumn of 1852, 
mention is made of the remains of Saurians in the Deep River de- 
posits, as well as of the Posidonia and Cypris, and of an Equisetites, @ 
Lycopodites and other allied forms, together with a naked, rather spi- 
nous ist regarded by him as a cellular cryptogamous plant. 
In view of the general identity of the fossils thus far found in the 
Dry River and Middle Virginia belts, with those of the most eastern de- 
posit in Virginia, viz., that including the coal of Chesterfield, Prof. Ro- 
rocks include c one or more thin seam coal, the same Cypridz 
Posidoniz are found in great SLES some of the fine- eee shales 
and black fossil slates. The latter were noticed as earl , by 
Dr. oyd, while on the Virginia Geological Survey. “egaving 
this fossil, ‘of which specimens were also obt ained about the same tim 
Keuper, Prof. Rogers had, many years ago, announced the probability - | 
that a part or all of the great western belt was of the age of the Trias, 
instead of being lower in the Mesozoic fa 
Specimens = the Posidonize and Cyprid, from both belts in North 
Carolina, and from the eastern and middle belts in Virginia, were eX- : 
hibited by Prof. Tews at the Albany nee of the America n Asso- | 
immense numbers of the same Posidon and Cypride, crowded 
pace fine argillaceous shales, and at sane points he had met, in 
the more. = rocks, v i ag te impressions, which, meg obscures — 
are strongly ves of Zamites. 
