Llanystumdwy, Gwynedd, Dwyfor Mudstone Fm. (Ordovician of the United Kingdom)

Where: United Kingdom (52.9° N, 4.3° W: paleocoordinates 45.7° S, 18.0° W)

When: Dwyfor Mudstone Formation, Rawtheyan (455.8 - 445.6 Ma)

Environment/lithology: marine; mudstone

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 165079: authorized by Björn Kröger, entered by Björn Kröger on 12.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Proetida - Proetidae
Paraproetus brevifrons Angelin 1854 trilobite