Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Eastern sequence
Lower Cambrian
Cheshire quartzite 1000+
Rutland marble 1000
?Colchester fr.
Milton dol. }
1000
Ordovician
Billiston li.x dol.
Chagg marble