The Jumpers, Zone 4 (Silurian of Canada)

Where: Qu├ębec, Canada (49.4° N, 63.6° W: paleocoordinates 21.1° S, 35.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Zone 4 Member (Jupiter Formation), Alexandrian (443.4 - 436.0 Ma)

• Lower Jupiter Formation; Monograptus clintonensis zone

• bed-level stratigraphic resolution

Environment/lithology: blue, argillaceous limestone and calcareous shale

• Environmental call by T. Hanson.
• Light blue and drab, soft, agillaceous limestone or highly calcareous shale

Size classes: macrofossils, microfossils

Reposited in the YPM

Primary reference: W. H. Twenhofel. 1928. Geology of Anticosti Island. Geological Survey of Canada Memoir 154(2132):1-351 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 63786: authorized by Pete Wagner, entered by Pete Wagner on 20.08.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods, trilobites, corals, bryozoans, ostradoces and conoconts included in collection. These need taxonomic data first.
Gastropoda
 Euomphalina - Platyceratidae
"Diaphorostoma humile" = Platyostoma humile, "Diaphorostoma niagarense" = Platyostoma niagarensis
"Diaphorostoma humile" = Platyostoma humile Billings 1866 snail
"Diaphorostoma niagarense" = Platyostoma niagarensis Hall 1852 snail
 Murchisoniina - Phanerotrematidae
"? Spirorapha communis" = Phanerotrema communis
"? Spirorapha communis" = Phanerotrema communis Billings 1866 snail
 Murchisoniina - Gosseletinidae
"Spirorapha cryptata" = Spiroraphe cryptata
"Spirorapha cryptata" = Spiroraphe cryptata Billings 1866 snail
 Murchisoniina - Hormotomidae
? Hormotoma funata Billings 1866 snail