Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
2. Dark iron grey, feebly calcareous
sandstone or quartzite. With
fucoids. Upper Potsdam.
Upper Potsdam 200'
3 Subcrystalline limestone.
Orthoceras small.
Encrinal discs
Lower Calciferous 20'-25'
4 Dark greenish fine-grained SS.
Lower 12'o 15' perforated with small
scolithi (S. minutus)
Scolithus minutus
The rest interstratified with
dolomitic limestone, holding
Ophileta compacta
Ophileta complanata
Maclurea
Orthosina
trilobite te.
Calciferous.
See next page.