Where: Wales, United Kingdom (52.9° N, 3.6° W: paleocoordinates 52.2° S, 18.4° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Glyn Gower Siltstones Formation (Lower Bala Group), Soudleyan (458.4 - 457.2 Ma)
• middle part of formation between lower Cefn Glyn Ash and Frondderw Ash
• member-level stratigraphic resolution
Environment/lithology: marine; lithified siltstone and fine-grained sandstone
Size class: macrofossils
Preservation: mold/impression
Reposited in the BMNH
Primary reference: H. B. Whittington. 1968. The Ordovician trilobites of the Bala Area, Merioneth. Part IV. Monograph of the Palaeontographical Society 122(520):93-138 [M. Hopkins/M. Hopkins]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 188593: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Rhynchonellata | |
|
Dinorthis berwynensis Whittington 1938 | |
|
Reuschella cf. horderleyensis Bancroft 1929 | |
|
Dalmanella sp. Hall and Clarke 1892 | |
| Strophomenata | |
"Macrocoelia prolata" = Colaptomena expansa prolata, ? Hedstroemina sp.
"Macrocoelia prolata" = Colaptomena expansa prolata Williams 1963
? Hedstroemina sp. Bancroft 1929 | |
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea
| |
| Trilobita | |
|
? Amphilichas sp. Raymond 1905 trilobite | |
|
Broeggerolithus broeggeri Bancroft 1929 trilobite | |
|
Brongniartella minor Salter 1852 trilobite | |
|
Flexicalymene (Reacalymene) limba Shirley 1936 trilobite | |