IO2 
NEW YORK STATE MUSEUM 
The peculiar yellow plattenkalke and marls of Oesel which contain 
the well known Baltic eurypterid fauna are of similar character with the 
Salina eurypterid beds. 
A different rock facies containing eurypterids is represented in the 
Pittsford shale and the Shawangunk grit shale beds. 
the fossils occur in a rather fissile, very dark olive-green to black shale. Its 
In the former 
relations to the Salina section have been recorded by Sarle [1903, p. 1082]! 
Top 
Io 
If 
I2 
13 
14 
com~war AN B WwW 
If 
12 
Feet 
Rondout. Upper portion, light weathering impure limestone; lower portion, 
a cement rock with cavities (seé p. 170) ..... 0. ee ve 45 
Cobleskill. Fossiliferous limestone gradually grading into the Rondout... 6 
salina. Waterlime with Eurypterus.....0.00000 000 een 
Salina. Soft, greenish shales....... 00000000 ccc eee neues 10 
salina. Gypsum beds, with intercalations of shale..................000. 65 
255 
*SECTION IN OLD ERIE CANAL AT PITTSFORD 
Salina 
Red shale... 0... eee e nee en ees 
Light gray, compact, fine grained, dolomite, with imperfect 
conchoidal fracture, weathering light brown to cream color. . 
soft, gritty mudrock, purple with bright red mottlings........ 
Dolomite like no. 2... 0... cece teen nee 
Purple shale with red mottlings.... 0.0.0... ccc eee ee 
Green shale... ee eee tenet eens 
Thin layer dolomite like no. 2...... eee eee 
Black shale, very compact, the base splitting unevenly; grading 
to olive-green shale in the upper part.................00005 
Dolomite like no. 2.0.0... teen 
Dolomite like no. 2............ eee eee eee e eee 
soft, green, arenaceous mudrock, occasionally becoming shaly; 
the lowest exposed rock of the cut. ........ 0.0. c cece eee ee 
Feet Inches 
6 
IO 
I 3 
4 
I II 
I 2 
4 
10 
IO 
I 2 
2 
I 8 
