[[left margin, circled]]48[[/left margin]] 
June 5 
6694 Old Quarry on N side of 
US 50, 0.15 miles west of 
junction of US 50 and Mo. 1 35, 
about 2 miles W of Otterville, 
Cooper Co., Mo. 
A - Coarse friable sandstone 
with angular fragments of 
white and dark chert 
B - Tan to light dove gray 
calcilutite intricately seamed by worm borings and falling into little 
pieces where rotted - Abundance of borings is outstanding 
C - Light gray calcilutite with scattered borings and pockets of breccia at 
top. 
D - Light dove calcilutite - 
occasional calcite-filled borings 
E - Darker dove calcilutite 
mottled with numerous white 
patches representing borings. Top with arborescent silicified fillings of 
borings. Patches of pellets. 
This is good typical Cooper 
limestone as described by Greger 1920 
[[left margin, diagram showing layers]] 
soil 
14’ E 
4 1/2' D 
T C 
4’ B 
1-2' A 
[[/left margin]] 
G. Arthur Cooper - Field notes, 1966 
Transcribed and Reviewed by Digital Volunteers 
Extracted Nov-02-2015 11:09:05 
Smithsonian Institution Transcription Center, Smithsonian Institution Archives 
