650 yards south of Ardmillan House (Ordovician of the United Kingdom)

Where: Scotland, United Kingdom (55.3° N, 4.9° W: paleocoordinates 21.5° S, 29.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ardwell Farm Formation (Ardwell Group), Burrellian (456.6 - 452.5 Ma)

• Basal beds

• group of beds-level stratigraphic resolution

Environment/lithology: foreshore; nodular, gray, blue siltstone and nodular, gray, blue mudstone

• Blue-grey siltstones and blocky to nodular mudstones

Size class: macrofossils

Reposited in the BMNH

Primary reference: A. Williams. 1962. The Barr and lower Ardmillan series (Caradoc) of the Girvan District, south-west Ayrshire, with descriptions of the Brachiopoda. Memoir - Geological Society of London 3:1-267 [M. Patzkowsky/Z. Krug/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165046: authorized by Pete Wagner, entered by Pete Wagner on 10.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Strophomenida - Plectambonitidae
Isophragma pseudoretroflexum
 Strophomenida - Bimuriidae
Bimuria youngiana
Bimuria youngiana Davidson 1870
Bimuria youngiana recta
 Strophomenida - Aegiromenidae
Sericoidea aff. abdita
Sericoidea aff. abdita Whittington and Williams 1955
 Strophomenida - Leptestiidae
Bilobia etheridgei
Bilobia etheridgei Davidson 1883
Bilobia etheridgei acuta
 Strophomenida - Christianiidae
Christiania perrugata
 Strophomenida - Leptellinidae
Leptellina llandeiloensis, Palaeostrophomena kilbuchoensis
 Strophomenida - Sowerbyellidae
Anisopleurella balclatchiensis, "Eoplectodonta semirugata" = Eoplectodonta (Eoplectodonta) semirugata
"Eoplectodonta semirugata" = Eoplectodonta (Eoplectodonta) semirugata Reed 1917
 Strophomenida - Strophomenidae
Strophomena girvanensis
 Strophomenida - Rafinesquinidae
Macrocoelia aff. concentrica, Rafinesquina insidiosa
Rafinesquina insidiosa Williams 1962
 Strophomenida - Glyptomenidae
"Glyptomena girvanensis" = Glyptomenoides girvanensis, Mjoesina rugata
"Glyptomena girvanensis" = Glyptomenoides girvanensis Salmon 1942
Mjoesina rugata Williams 1962
Mjoesina rugata plana
 Orthotetida - Triplesiidae
Oxoplecia subborealis
Oxoplecia subborealis Davidson 1883
Rhynchonellata
 Orthida - Plaesiomyidae
Chaulistomella sp.
Chaulistomella sp. Cooper 1956
 Orthida - Glyptorthidae
Glyptorthis balclatchiensis
 Orthida - Orthidae
"Orthambonites aff. parvicrassicostatus" = Sulevorthis parvicrassicostatus, Orthambonites ardmillanensis
"Orthambonites aff. parvicrassicostatus" = Sulevorthis parvicrassicostatus Cooper 1956
 Orthida - Hesperorthidae
? Dolerorthis sp., Dolerorthis rankini, Hesperorthis cf. australis
? Dolerorthis sp. Schuchert and Cooper 1931
Dolerorthis rankini Davidson 1883
Hesperorthis cf. australis Cooper 1956
Hesperorthis cf. australis exitis
 Orthida - Plectorthidae
Doleroides cf. tennesseensis
 Orthida - Paurorthidae
Paurorthis sp.
Paurorthis sp. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
Dalmanella cheesemani, Paucicrura sila, Eremotrema gracilis
Dalmanella cheesemani Williams 1962
Paucicrura sila Williams 1962
 Orthida - Linoporellidae
Laticrura sp.
Laticrura sp. Cooper 1956
 Atrypida - Protozygidae
"Protozyga diversa" = Manespira diversa
"Protozyga diversa" = Manespira diversa Reed 1917
 Atrypida - Septatrypidae
"? Cyclospira cf. longa" = Idiospira longa
"? Cyclospira cf. longa" = Idiospira longa Cooper 1956
 Atrypida - Anazygidae
"Zygospira orbis" = Anazyga orbis
"Zygospira orbis" = Anazyga orbis Reed 1917
 Rhynchonellida - Trigonirhynchiidae
Rostricellula ardmillanensis
Lingulata
 Lingulida - Obolidae
Elliptoglossa cf. rotundata, Lingulella quaestor, Glossella pulcherrima, Glyptoglossa ardmillanensis
 Lingulida - Paterulidae
Paterula balclatchiensis
 Acrotretida - Acrotretidae
Conotreta davidsoni