Where: Wales, United Kingdom (52.1° N, 3.6° W: paleocoordinates 35.6° S, 16.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Trefawr Formation, 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." Localities are referred to the measured transects f2, h1, i2, i3, j2, and l, of Cocks et al. 1984, p178, fig.3)
• 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." Sample: 3.6 kg + outcrop [?]
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 4998: authorized by John Alroy, entered by Mike Sommers on 26.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
Leangella scissa Davidson 1871 | |
Triplesia ? woodlandensis Reed 1917 | |
Rhynchonellata | |
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"Plectatrypa tripartita" = Eospirigerina tripartita
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Dolerorthis sowerbyiana Davidson 1869 | |
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Dicoelosia osloensis Wright 1968 | |
"Clorinda undata" = Clorilamnulella undata
"Clorinda undata" = Clorilamnulella undata de Sowerby and Murchison 1839 | |
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