9,380 m SW of Gelli-grin Farm, Bala, Gwynedd (Ordovician to of the United Kingdom)

Where: Wales, United Kingdom (52.9° N, 3.6° W: paleocoordinates 50.1° S, 18.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Gelli-grin Group, Burrellian to Burrellian (456.6 - 451.3 Ma)

• group-level stratigraphic resolution

Environment/lithology: offshore; mudstone and siltstone

• This paper pays very little attention to the lithologic descriptions, focusing instead on correlation of brachiopod faunas.
• Mudstones and siltstones with minor ashes and sandstones.

Size class: macrofossils

Reposited in the BMNH

Primary reference: A. Williams. 1963. The Caradocian brachiopod faunas of the Bala District, Merionethshire. Bulletin of the British Museum of Natural History (Geology) 8(7):327-471 [m. patzkowsky/Z. Krug/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 171851: authorized by Pete Wagner, entered by Pete Wagner on 21.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only.
Show authors, comments, and common names
Strophomenata
 Strophomenida - Rafinesquinidae
Leptaena ventricosa
Leptaena ventricosa Williams 1963