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Opsimasaphus-Nankinolithus trilobite association, North Wales, UK (Ordovician of the United Kingdom)

Where: England, United Kingdom (53.0° N, 3.0° W: paleocoordinates 42.4° S, 16.7° W)

• local area-level geographic resolution

When: Rawtheyan (455.8 - 445.6 Ma)

Environment/lithology: submarine fan; lithified shale

• Mudstone

Primary reference: D. Price and P. M. Magor. 1984. The ecological significance of variation in the genesis composition of Rawtheyan (Late Ordovician) trilobite faunas from North Wales, U.K. U. K. Geological Journal 19:187-200 [A. Miller/P. Novack-Gottshall] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3676: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 06.08.1999