Where: Wales, United Kingdom (51.8° N, 3.6° W: paleocoordinates 39.1° S, 17.0° W)
• small collection-level geographic resolution
When: Ooid Member (Wenallt Formation), Hirnantian (445.2 - 443.4 Ma)
• member-level stratigraphic resolution
Environment/lithology: offshore; lithified, ooidal, shelly/skeletal, argillaceous, sandy siltstone and sandstone
Primary reference: A. Williams and A. D. Wright. 1981. The Ordovician-Silurian boundary in the Garth area of southwest Powys, Wales. Geological Journal 16:1-39 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 8386: authorized by John Alroy, entered by Mike Sommers on 10.07.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Strophomenata | |
Eostropheodonta hirnantensis M'Coy 1851 | |
Leptaena sp. Dalman 1828 | |
Rhynchonellata | |
Glyptorthis sp. Foerste 1914 | |
Dalmanella sp. Hall and Clarke 1892 | |
? Hindella sp. Davidson 1882 | |
Bryozoa | |
Bryozoa indet. Ehrenberg 1831 | |
Stenolaemata | |
| |
| |
Trilobita | |
? Mucronaspis sp. Destombes 1963 trilobite | |
Ostracoda | |
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