Where: Västergötland, Sweden (58.6° N, 13.4° E: paleocoordinates 30.4° S, 7.2° W)

• coordinate stated in text

When: Jonstorp Formation, Pirgu (449.5 - 445.6 Ma)

• "lower Johnstorp Fm. "Tretaspis shale", in Owens (2004)

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: R. M. Owens. 2004. Late Ordovician and early Silurian Proetida (Trilobita) from North-Western and Central Europe. Palaeontology 47(3):557-578 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165093: authorized by Björn Kröger, entered by Björn Kröger on 12.01.2015

Creative Commons license: CC BY (attribution)