Where: Wales, United Kingdom (52.7° N, 3.3° W: paleocoordinates 35.0° S, 16.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Rhuddanian to Rhuddanian (443.4 - 438.5 Ma)

• Unless a conodont zone was explicitly stated, a Late Rhudd - Late Aeron age was entered because of the statement these beds are all "pre-sedgwickii Zone."

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone and sandstone

Collection methods: bulk,

• "... a single collection (from bulk material) [was made] from each locality, identifying and recording all fossils encountered during break up of the rock... [sacrificing commoner taxa in continued searching, or preserving rarer specimens and not breaking the rock further]...figures obtained for relative frequencies of the taxa are prob accurate...estimates of volumetric abundance...are prob too low."

Primary reference: J. T. Temple. 1987. Early Llandovery brachiopods of Wales. Palaeontological Society Monographs 139(572):1-137 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 4950: authorized by John Alroy, entered by Mike Sommers on 26.08.1999

Creative Commons license: CC BY (attribution)