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 (458.4 - 457.2 Ma)
• upper assemblage zone
• member-level stratigraphic resolution
Environment/lithology: marine; lithified, bioturbated, phosphatic, blue, silty mudstone and lithified 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 188589: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Strophomenata | |
"Sowerbyella musculosa" = Sowerbyella (Sowerbyella) musculosa
"Sowerbyella musculosa" = Sowerbyella (Sowerbyella) musculosa Williams 1963 | |
Strophomena sp. Rafinesque and De Blainville 1824 | |
"Macrocoelia prolata" = Colaptomena expansa prolata, Leptaena ventricosa, "Kiaeromena cf. kjerulfi" = Kiaeromena (Kiaeromena) kjerulfi
"Macrocoelia prolata" = Colaptomena expansa prolata Williams 1963
Leptaena ventricosa Williams 1963
"Kiaeromena cf. kjerulfi" = Kiaeromena (Kiaeromena) kjerulfi Holtedahl 1916 | |
Rhynchonellata | |
Dinorthis berwynensis Whittington 1938 | |
Dolerorthis sp. Schuchert and Cooper 1931 | |
Reuschella horderleyensis Bancroft 1929 | |
"Howellites ultima" = Howellites ultimus
"Howellites ultima" = Howellites ultimus Bancroft 1945 | |
Trilobita | |
Broeggerolithus soudleyensis trilobite
Broeggerolithus broeggeri Bancroft 1929 trilobite | |
Brongniartella minor Salter 1852 trilobite |