Glyn Ceiriog, Dolhir Fm. above basal units (Ordovician to of the United Kingdom)

Where: Wales, United Kingdom (52.9° N, 3.2° W: paleocoordinates 42.5° S, 16.8° W)

• local area-level geographic resolution

When: Dolhir Formation, Cautleyan to Cautleyan (449.2 - 445.2 Ma)

• Above basal units (Tyn-y-twmpath and Dolhir Limestone Mbrs are basal units)

• member-level stratigraphic resolution

Environment/lithology: offshore; lithified, shelly/skeletal, sandy siltstone and mudstone

• siltstones, mudstones, and associated minor coquinoid sandstones.

Primary reference: N. Hiller. 1981. The Ashgill rocks of the Glyn Ceirog district, North Wales. Geological Journal 16:181-200 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8291: authorized by John Alroy, entered by Mike Sommers on 05.07.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Odontopleurida - Odontopleuridae
Primaspis cf. evoluta
Primaspis cf. evoluta Törnquist 1884 trilobite
 Trinucleida - Trinucleidae
Tretaspis cf. hadelandica
Tretaspis cf. hadelandica Stormer 1945 trilobite
ssp. brachystichus
 Proetida - Proetidae
Astroproetus sp.
Astroproetus sp. Begg 1939 trilobite
 Harpetida - Harpetidae
Paraharpes cf. ruddyi
Paraharpes cf. ruddyi Whittington 1950 trilobite
 Corynexochida - Illaenidae
? Stenopareia sp., ? Illaenus (Parillaenus) sp.
? Stenopareia sp. Holm 1886 trilobite
? Illaenus (Parillaenus) sp. Jaanusson 1954 trilobite
sgn. (Parillaenus)
 Corynexochida - Styginidae
? Stygina sp.
? Stygina sp. Salter 1853 trilobite
 Lichida - Lichidae
? Platylichas sp.
? Platylichas sp. Gürich 1901 trilobite
 Phacopida - Cheiruridae
Sphaerocoryphe sp., Pseudosphaerexochus sp.
Sphaerocoryphe sp. Angelin 1854 trilobite
Pseudosphaerexochus sp. Schmidt 1881 trilobite
 Phacopida - Encrinuridae
Atractopyge sp., Cybeloides (Paracybeloides) cf. girvanensis
Atractopyge sp. Hawle and Corda 1847 trilobite
Cybeloides (Paracybeloides) cf. girvanensis Reed 1906 trilobite
sgn. (Paracybeloides)
 Phacopida - Calymenidae
Prionocheilus sp., "Flexicalymene quadrata" = Gravicalymene quadrata
Prionocheilus sp. Rouault 1847 trilobite
"Flexicalymene quadrata" = Gravicalymene quadrata King 1923 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp.
Calyptaulax sp. Cooper 1930 trilobite
Ostracoda
 Palaeocopida - Primitiidae
Primitia sp.
Primitia sp. Jones and Holl 1923 ostracod
Stenolaemata
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
 Cyclostomata - Corynotrypidae
Corynotrypa sp.
Corynotrypa sp. Bassler 1911
 Cryptostomata - Ptilodictyidae
Ptilodictya sp.
Ptilodictya sp. Lonsdale 1839
Craniata
 Craniopsida - Craniopsidae
Paracraniops sp.
Paracraniops sp. Williams 1963
 Craniida - Craniidae
Philhedra cf. grayii
Rhynchonellata
 Pentamerida - Parastrophinidae
? Parastrophina sp.
? Parastrophina sp. Schuchert and LeVene 1929
 Protorthida - Skenidiidae
Skenidioides cf. asteroideus
 Athyridida - Meristellidae
Hindella incipiens
Hindella incipiens Williams 1951
ssp. incipiens
 Atrypida - Anazygidae
Catazyga cf. hicksi
 Atrypida - Atrypidae
Plectatrypa cf. sulevi
 Atrypida - Cyclospiridae
Cyclospira sp., "Protozyga cf. perplexa" = Cyclospira perplexa
Cyclospira sp. Hall and Clarke 1893
"Protozyga cf. perplexa" = Cyclospira perplexa Williams 1962
 Orthida - Saukrodictyidae
Saukrodictya hibernica
 Orthida - Linoporellidae
Laticrura cf. erecta
 Orthida - Dicoelosiidae
Dicoelosia sp., Dicoelosia cf. indenta
Dicoelosia sp. King 1850
 Orthida - Harknessellidae
Reuschella sp.
Reuschella sp. Bancroft 1928
 Orthida - Dalmanellidae
Ravozetina silvicola, Eremotrema cf. paucicostellatum, ? Howellites sp., Dalmanella cf. testudinaria
? Howellites sp. Bancroft 1945
 Orthida - Glyptorthidae
Glyptorthis cf. maritima
 Orthida - Plaesiomyidae
Plaesiomys porcata
Plaesiomys porcata M'Coy 1846
 Orthida - Hesperorthidae
Dolerorthis aff. intercostata
Dolerorthis aff. intercostata de Sowerby and Murchison 1839
 Orthida - Orthidiellidae
Portranella sp.
Portranella sp. Wright 1964
 Orthida - Orthidae
"Orthambonites cf. humilidorsatus" = Sulevorthis humilidorsatus
"Orthambonites cf. humilidorsatus" = Sulevorthis humilidorsatus Wright 1964
 Orthida - Productorthidae
Nicolella actoniae
Nicolella actoniae de Sowerby and Murchison 1839
 Orthida - Platystrophiidae
Platystrophia anomala
 Orthida - Cremnorthidae
Cremnorthis sp.
Cremnorthis sp. Williams 1963
Strophomenata
 Strophomenida - Furcitellidae
Katastrophomena dolhirensis, ? Luhaia sp.
? Luhaia sp. Roomusoks 1956
 Strophomenida - Strophomenidae
Gunnarella sp., Strophomena ceiriogensis
Gunnarella sp. Spjeldnaes 1957
 Strophomenida - Glyptomenidae
Mjoesina marri
 Strophomenida - Rafinesquinidae
Kjaerina sp., Leptaena cf. rugosa
Kjaerina sp. Bancroft 1929
Leptaena cf. rugosa Dalman 1828
 Strophomenida - Aegiromenidae
"Chonetoidea cf. papillosa" = Chonetoidea radiatula
"Chonetoidea cf. papillosa" = Chonetoidea radiatula Barrande 1879
 Strophomenida - Leptestiidae
Sampo transversa, "Diambonia cf. gibbosa" = Leangella, Leangella cf. scissa
Sampo transversa Cocks 2014
"Diambonia cf. gibbosa" = Leangella
Leangella cf. scissa Davidson 1871
 Strophomenida - Christianiidae
Christiania sp.
Christiania sp. Hall and Clarke 1892
 Strophomenida - Sowerbyellidae
Kozlowskites sp., Sowerbyella cf. sladensis
Kozlowskites sp. Havlicek 1952
 Billingsellida - Clitambonitidae
Vellamo cf. diversa
Vellamo cf. diversa Shaler 1865
 Billingsellida - Gonambonitidae
Kullervo complectens, Kullervo ? grandis
Kullervo complectens Wiman 1907
ssp. albida
Kullervo ? grandis Cocks 2014
 Orthotetida - Triplesiidae
Triplesia hintsae, Oxoplecia cf. plicata
Triplesia hintsae Cocks 2014
 Orthotetida - Chilidiopsidae
Fardenia scotica
Lingulata
 Lingulida - Obolidae
Lingulella sp.
Lingulella sp. Salter 1866
sp. A
Gastropoda
 Murchisoniina - Trochonematidae
Trochonema sp.
Trochonema sp. Salter 1859 snail
 Rhombifera - Echinosphaeritidae
Echinosphaerites arachnoideus
 Rhombifera - Pleurocystitidae
"Pleurocystites cf. angelicus" = Pleurocystites anglicus
"Pleurocystites cf. angelicus" = Pleurocystites anglicus Jaekel 1899
 Rhombifera - Cheirocrinidae
Cheirocrinus sp.
Cheirocrinus sp. Eichwald 1856
 Sphaeronitida - Sphaeronitidae
Haplosphaeronis multifida
Rhombifera
 Hemicosmitoida - Caryocrinitidae
Caryocrinites rugatus
Anthozoa
 Stauriida - Petraiidae
Petraia sp.
Petraia sp. Münster 1839 horn coral
 Heliolitida - Heliolitidae
Heliolites sp.
Heliolites sp. Dana 1846 tabulate coral