Narwhal 0-58, Ekwan River Fm, Pterospathodus celloni-P. eopennatus Z (Silurian to of Canada)

Where: Manitoba, Canada (57.9° N, 84.3° W: paleocoordinates 12.4° S, 40.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pterospathodus celloni-Pterospathodus eopennatus conodont zone, Ekwan River Formation, Sheinwoodian to Sheinwoodian (433.4 - 427.4 Ma)

• Pterospathodus celloni-Pterospathodus eopennatus

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; limestone and dolomite

• well-bedded, skeletal and pelletoidal limestone and fine-grained dolostone

Size class: microfossils

Primary reference: S. Zhang and C. R. Barnes. 2007. Late Ordovician- Early Silurian conodont biostratigraphy and thermal maturity, Hudson Bay Basin. Bulletin of Canadian Petroleum Geology 55(3):179-216 [E. Jarochowska/P. Nätscher]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 177687: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 08.04.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Belodellida - Belodellidae
Walliserodus curvatus
Walliserodus curvatus Branson and Branson 1947 conodont
 Prioniodontida - Distomodontidae
Distomodus staurognathoides
Distomodus staurognathoides Walliser 1964 conodont
 Prioniodontida - Balognathidae
Pterospathodus eopennatus
Pterospathodus eopennatus Männik 1998 conodont
 Prioniodontida -
Pseudooneotodus tricornis, Pseudooneotodus beckmanni
Pseudooneotodus tricornis Drygant 1974 conodont
Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont
 Prioniodontida - Prioniodinidae
"Aspelundia expansa" = Pseudolonchodina expansa
"Aspelundia expansa" = Pseudolonchodina expansa Armstrong 1990 conodont
 Ozarkodinida - Pterospathodontidae
Apsidognathus tuberculatus
Apsidognathus tuberculatus Walliser 1964 conodont
 Ozarkodinida -
Ozarkodina pirata
Ozarkodina pirata Uyeno and Barnes 1983 conodont