Old quarry near corner of field 300 m WSW of Trefenty (Ordovician of the United Kingdom)

Also known as Loc. 10

Where: Wales, United Kingdom (51.8° N, 4.5° W: paleocoordinates 43.5° S, 18.0° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Shelly Zone 4 brachiopod zone, Sholeshook Formation, Cautleyan (449.5 - 445.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shelly/skeletal, argillaceous, cherty/siliceous limestone

• The deposits of the Keisley Limestone generally are interpreted to represent a carbonate mud mound.
• "The formation is typically an argillaceous-calcareous or arenaceous-calcareous rock (often not a true limestone), easily weathered to rottenstone and characterised by a particularly rich and varied trilobite fauna with abundant cystoids and brachiopods also." (Price, 1973, Geol. J. 8(2)).

Size class: macrofossils

Preservation: cast

Collection methods: NMW = National Museum of Wales

Primary reference: L. R. M. Cocks. 2014. The Late Ordovician brachiopods of southern Pembrokeshire and adjacent south-western Wales. Special Papers in Palaeontology 91:1-89 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185102: authorized by Pete Wagner, entered by Pete Wagner on 10.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthotetida - Triplesiidae
Triplesia hintsae Cocks 2014
 Strophomenida - Sowerbyellidae
Kozlowskites nuntius Barrande 1879
 Strophomenida - Leptestiidae
Sampo transversa Cocks 2014
 Strophomenida - Rafinesquinidae
 Strophomenida - Strophomenidae
 Orthida - Dalmanellidae
Cryptothyris magnifica n. sp. Cocks 2014
Onniella jonesi Davidson 1883
 Orthida - Harknessellidae
 Orthida - Glyptorthidae
 Orthida - Orthidae
 Orthida - Productorthidae
Nicolella crabbi Cocks 2014
 Orthida - Hesperorthidae
Dolerorthis intercostata de Sowerby and Murchison 1839
 Orthida - Platystrophiidae
 Orthida - Giraldiellidae
? Giraldiella sp. Williams 1951