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: Diplograptus multidens graptolite zone, Allt Ddu Formation (Lower Bala Group), Soudleyan (457.5 - 455.8 Ma)
• lower assemblage zone
• member-level stratigraphic resolution
Environment/lithology: marine; lithified, bioturbated, blue, silty mudstone and lithified, fine-grained siltstone
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 188588: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Trilobita | |
Broeggerolithus broeggeri Bancroft 1929 trilobite | |
Brongniartella sp. Reed 1918 trilobite | |
Flexicalymene (Reacalymene) limba Shirley 1936 trilobite | |
Lingulata | |
Lingulella cf. ovata M'Coy 1846 | |
Strophomenata | |
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea
| |
"Macrocoelia prolata" = Colaptomena expansa prolata, Leptaena ventricosa
"Macrocoelia prolata" = Colaptomena expansa prolata Williams 1963
Leptaena ventricosa Williams 1963 | |
Rhynchonellata | |
Dalmanella sp. Hall and Clarke 1892 | |
| |
Reuschella cf. horderleyensis Bancroft 1929 | |
Dinorthis berwynensis Whittington 1938 |