Review of the New York Geological Reports. ‘63 
In the shell strata on the Falls of the Ohio, there are vast num- 
bers of Delthyris, which, in their general form, resemble Fig. 3 
of this wood cut; but they are much smaller than this figure, 
and its ribs are finer and more numerous, (from sixteen to eigh- 
teen.) Dr. Cuarp has called it Delthyris gregaria. 
This is the lowest position in the State of New York, in which 
any remains have been found of animals higher in the scale of 
organized beings than Crustacea, with the exception of an im- 
perfectly preserved fish-bone discovered by Haut in the Oriskany 
sandstone. ‘That specimen, together with the defensive fin bone, 
Fig. 4, found in this part of the New York system, furnishes ev- 
idence of the existence of animals belonging to the class Verte- 
brata, during the deposition of the middle part of the protozoic 
strata. Besides these, Vanuxem mentions a gigantic species of 
Cyathophyllum, (C. gigantea,) as peculiar to this rock, some 
over eight inches long. On the Falls of the Ohio, Cyathophylla 
occur nearly as long as a man’s arm, (C. gigas of Cuapp.) | Per- 
haps the western and eastern species may be found to be identical. 
Conran has also described and named the following fossils from 
the Onondaga limestone: Asaphus aspectans, Delthyris rarico- 
stata, Strophomena gibbosa, S. perplana, Atrypa nasuta, A. uni- 
sulcata, A, acutiplicata, Avicula pecteniformis, Cypricardites in- 
flata, Bellerophon curvilineatus, Pleurotomaria Poulsoni, P. wni- 
sulcata. 
The foregoing affords strong seommniliinn evidence that the up- 
per coralline beds of the Falls of the Ohio are equivalent to the 
Onondaga limestone of New York. Since many more corals 
than have been described or enumerated occur in these forma- 
tions, we shall be better able to judge of their parallelism after 
the publication of the volume on the paleontology of the State 
of New York. Dr. Troost’s description of the fossil corals found 
in the limestone of Perry County, Tennessee, leaves little room 
to doubt that there, and at the locality of the E’ncrinites levis, 
ten miles from Nashville, mentioned by Vanvuxem, will be found 
their south western representative. Dr. Troost enumerates, 
amongst other fossils of that part of Tennessee, Calamopora ( fa- 
vosites) favosa, basaltica, alveolaris and spongites ; besides seve- 
ral species of Cyathophylla. 
The upper calcareous bed near the falls of Fall Creek, (Pen- 
dleton marble, ) agrees in lithological character, external appear- 
. 
