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North Wales Rawtheyan Assemblage 4C, Crugan Mudstone, England (Ordovician of the United Kingdom)

Where: England, United Kingdom (53.0° N, 4.0° W: paleocoordinates 42.4° S, 17.5° W)

• local area-level geographic resolution

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

• formation-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, burrowed, gray shale

• Brown-grey, campact ludstone with some Chondrites and mottling

Primary reference: D. Price. 1981. Ashigill trilobite faunas from the Llyn Peninsula, North Wales, U.K. Geological Magazine 16(3):201-216 [A. Miller/P. Novack-Gottshall] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3666: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 06.08.1999