Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
This a conglomerate of red shale pebbles,
Lincoln payments and tiny orbitis are
supcharged with ferric material.
The Medina sandstones are especially
here at Letchworth in a series of sandstone
lenses (about 75%) deposited in a red
shale series.