Sandtorp, C. bisulcata zone (Ordovician of Sweden)

Where: Västergötland, Sweden (58.4° N, 13.6° E: paleocoordinates 39.7° S, 14.9° W)

When: Ctenopyge bisulcata trilobite zone, Alum Shale Formation, Tremadocian (485.4 - 477.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shale and limestone

Size classes: macrofossils, mesofossils

Primary reference: M. Høyberget and D. L. Bruton. 2012. Revision of the trilobite genus Sphaerophthalmus and relatives from the Furongian (Cambrian) Alum Shale Formation, Oslo Region, Norway. Norwegian Journal of Geology 92:433-450 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190326: authorized by Björn Kröger, entered by Björn Kröger on 05.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Olenida - Olenidae
Ctenopyge pecten trilobite
Triangulopyge humilis Phillips 1848 trilobite
Triangulopyge majusculus Linnarsson 1880 trilobite
Sphaerophthalmus alatus Boeck 1838 trilobite