Northrop Locality 019. Along crest of Reddish Point ridge, east of Port Daniel (Silurian of Canada)

Where: Quebec, Canada (48.2° N, 66.0° W)

• Paleocoordinates: 19.4° S, 58.4° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: West Point Formation, Pridoli (423.0 - 419.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; gray lime mudstone

• "Shells almost entirely articulated...High diversity suggests normal oxygen...normal level of turbulence...BA 4. [P.-A. Bourque] finds that the Gaspe occurrences represent fore-reef facies of the lower reef compelx of the West Point Formation."

•SEP environmental call based on given information

• "fine grained matrix of micritic limestone...secondarily reddish due to weathering [originally gray]."

Size class: macrofossils

Reposited in the USNM

Primary reference: S. A. Northrop. 1939. Paleontology and stratigraphy of the Silurian rocks of the Port Daniel-Black Cape Region, Gaspé. Geological Society of America Special Paper 21:1-302 [P. Wagner/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 207843: authorized by Pete Wagner, entered by Pete Wagner on 17.02.2020

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Proetida - Proetidae
"Proetus turgidus n. sp." = Crassiproetus turgidus
"Proetus turgidus n. sp." = Crassiproetus turgidus Northrop 1939 trilobite
Gastropoda
 Euomphalina - Platyceratidae
"Holopea niagarensis" = Cyclonema niagarensis, "Diaphorostoma niagarense" = Platyostoma niagarensis
"Holopea niagarensis" = Cyclonema niagarensis Winchell and Marcy 1866 snail
"Diaphorostoma niagarense" = Platyostoma niagarensis Hall 1852 snail
 Murchisoniina - Luciellidae
"Euomphalopterus halei" = Prosolarium halei
"Euomphalopterus halei" = Prosolarium halei Hall 1867 snail
 Murchisoniina - Gosseletinidae
"Pleurotomaria putillus" = Spiroraphe putillus
"Pleurotomaria putillus" = Spiroraphe putillus Northrop 1939 snail
 Bellerophontida - Bellerophontidae
"Bellerophon ornatus n. sp." = Coelocyclus ornatus
"Bellerophon ornatus n. sp." = Coelocyclus ornatus Northrop 1939 snail