Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Causapsocal, Quebec, Wednesday Aug 21-29
Last night Crickmay showed me some fossils out of the
Matapedia formation on the farm near the bridge on the Matapedia
river near Causapsocal, as I thought I saw a small Alcyta
marginalis and as this fauna is very different from the one
found on July 29 on the Resti broche, I decided to walk back to Matapedia. Arrived there at noon and
remained collected here for four hours. The crystalline hills are
very limited and we got nothing more than Crickmay haul.
Corkran found one of the detatable shells
The Matapedia formation goes up the river for 70 or 80 miles
when fine grained muds ss appear and it then continues
along with sandy sh to within 7 miles of Causapsocal.
We found our fossils in place, no has Crickmay but in
a small boring pit in a very weak shale at the side of the road,
or for a large Diamonites tail and an abundance of Lep.
Helellites, etc. In a large quarry in the ss at about 6 miles
south of Causapsocal Corkran found a loose orthocerid
shell with a large Spirifer having the fold and suture visible.
These fossils show that the ss-sh series is Devonian. If there
is no repetition or faulting Crickmay says the series is
about 14,000 feet thick. This is unbelievable.