442 NEW YORK STATE MUSEUM 
A’ Partly covered. Heavy bedded massive, 
very compact arenaceous limestone. Calciferous 
sandrock. Goa, 
A? Covered with soil except at top. 60'=5 907 
Al Covered. Gravel and boulders at the mouth 
of the Evakill. River level. 20/1207 
The following species were identified from the Black river (C01 - 
ummnaria) zone: 
1 Columnaria alveolata Goldfuss (a) 
2 Monticulipora (Prasopora) lycoperdon Say? (r) 
3 ?Phytopsis cellulosua Hall | (a) 
4 Streptelasma profundum Hall (c) 
5 Rafinesquina alternata (Con.) Hall and Clarke (r) 
6 Murchisonia bellicincta Hall (r) 
7 Crinoid segments | (c) 
This section presents a number of points of interest. The upper 
part of no. 4 representing the fucoidal member of the Calciferous is 
of unusually dark color and weathers nearly white. It abounds in 
the so-called fucoidal markings. These layers are doubtless near the 
top of the Calciferous stage both from considerations of dip which 
would bring the Trenton due a few feet above them and from their 
lithologic character. The rocks on Quarry hill present several 
points of special interest. As one ascends the steep eastern slope 
of the hill a gradual transition in the lithologic character of the - 
Calciferous sandrock, which is typical at the base of the hill, is 
noticed, the layers at the top being thin, finer grained, lumpy and 
less arenaceous. The weathered escarpment of Calciferous appear- 
ing at the southern end of the main escarpment of the hill does not 
look different superficially from the Black river and Birdseye beds 
which form the northern end of the escarpment. The Calciferous is 
however arenaceous and lighter colored. Above the Calciferous and 
forming as was stated the northern part of the escarpment or ledge 
(for the superincumbent rocks have been for the most part re- 
moved from the Calciferous at the southern part of the ledge) are 
layers belonging to the Birdseye and Black river horizons. The 
Birdseye at this point has a thickness of 24 feet. Just over the edge 
of the hill in the northeastern part of the quarry the coral bearing 
lumpy layers of Black river limestone are seen resting immediately 
