Craig y Garcyd, River Usk, Monmouthshire (Silurian of the United Kingdom)

Where: Wales, United Kingdom (51.6° N, 3.0° W: paleocoordinates 29.9° S, 13.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wenlock Shale Formation, Wenlock (433.4 - 427.4 Ma)

• STRATIGRAPHIC RELATIONS: Stated to be from the "Wenlock Shale". AGE: Assumed to be of Wenlock age, given lithostratigraphic assignment. STRATIGRAPHIC POSITION: From unknown position in stratigraphic section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• ENVIRONMENT: Not stated in text.
• SPECIFIC LITHOLOGY: Shale, on the basis of lithostratigraphic assignment and figured specimens. LITHIFICATION: Poorly-lithified, on the basis of figured specimens.

Size class: macrofossils

Reposited in the BGS

Collection methods: surface (in situ),

• COLLECTORS: Not stated in text. REPOSITORY: British Geological Survey.

Primary reference: V. A. Ratter and J. C. W. Cope. 1998. New Silurian Neotaxodont Bivalves from South Wales and their phylogenetic significance. Palaeontology 41(5):975-991 [A. Miller/R. Krause/R. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123137: authorized by Austin Hendy, entered by Austin Hendy on 12.01.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxon described in text. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-level identifications.
Bivalvia
 Arcida - Frejidae
Uskardita mikraulax n. sp. Ratter and Cope 1998 clam