Glyn Ceiriog, Dolhir Fm. above basal units: Cautleyan - Rawtheyan, United Kingdom

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Heliolitida - Heliolitidae
Heliolites sp. Dana 1846
Anthozoa - Stauriida - Petraiidae
Petraia sp. Münster 1839
Sphaeronitidae
Haplosphaeronis multifida
Rhombifera - Caryocrinitidae
Caryocrinites rugatus (Forbes 1848)
Rhombifera - Echinosphaeritidae
Echinosphaerites arachnoideus
Rhombifera - Pleurocystitidae
Pleurocystites cf. angelicus (Jaekel 1899)
original and current combination Pleurocystites anglicus
Rhombifera - Cheirocrinidae
Cheirocrinus sp. Eichwald 1856
Gastropoda - Murchisoniina - Trochonematidae
Trochonema sp. Salter 1859
Strophomenata - Billingsellida - Gonambonitidae
Kullervo sp. Opik 1932
    = Kullervo ? grandis Cocks 2014
Cocks 2014
Kullervo complectens (Wiman 1907)
Orthisina complectens
ssp. albida
Strophomenata - Billingsellida - Clitambonitidae
Vellamo cf. diversa (Shaler 1865)
Strophomenata - Strophomenida - Aegiromenidae
Chonetoidea cf. papillosa (Reed 1905)
synonym of Chonetoidea radiatula
Strophomenata - Strophomenida - Leptestiidae
Leangella cf. scissa (Davidson 1871)
Diambonia cf. gibbosa
synonym of Leangella
Sampo cf. ruralis (Reed 1917)
    = Sampo transversa Cocks 2014
Cocks 2014
Strophomenata - Strophomenida - Christianiidae
Christiania sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Sowerbyellidae
Kozlowskites sp. Havlicek 1952
Sowerbyella cf. sladensis Jones 1928
Strophomenata - Strophomenida - Strophomenidae
Strophomena ceiriogensis
Gunnarella sp. Spjeldnaes 1957
Strophomenata - Strophomenida - Furcitellidae
Katastrophomena dolhirensis Hiller 1980
? Luhaia sp. Roomusoks 1956
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena cf. rugosa Dalman 1828
Kjaerina sp. Bancroft 1929
Strophomenata - Strophomenida - Glyptomenidae
Mjoesina marri
Strophomenata - Orthotetida - Triplesiidae
Oxoplecia cf. plicata (Wiman 1907)
Triplesia plicata
Triplesia cf. insularis Eichwald 1843
    = Triplesia hintsae Cocks 2014
Cocks 2014
Strophomenata - Orthotetida - Chilidiopsidae
Fardenia scotica
Rhynchonellata - Pentamerida - Parastrophinidae
? Parastrophina sp. Schuchert and LeVene 1929
Rhynchonellata - Orthida - Plaesiomyidae
Plaesiomys porcata (M'Coy 1846)
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis cf. maritima Wright 1964
Rhynchonellata - Orthida - Orthidae
Orthambonites cf. humilidorsatus Wright 1964
recombined as Sulevorthis humilidorsatus
Rhynchonellata - Orthida - Hesperorthidae
Dolerorthis aff. intercostata (de Sowerby and Murchison 1839)
original and current combination Orthis intercostata
Rhynchonellata - Orthida - Productorthidae
Nicolella actoniae (de Sowerby and Murchison 1839)
Rhynchonellata - Orthida - Orthidiellidae
Portranella sp. Wright 1964
Rhynchonellata - Orthida - Cremnorthidae
Cremnorthis sp. Williams 1963
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia anomala Hiller 1980
Rhynchonellata - Orthida - Harknessellidae
Reuschella sp. Bancroft 1928
Rhynchonellata - Orthida - Dalmanellidae
Dalmanella cf. testudinaria (Dalman 1828)
original and current combination Orthis testudinaria
Eremotrema cf. paucicostellatum Mitchell 1977
? Howellites sp. (Bancroft 1945)
original and current combination Resserella (Howellites)
Ravozetina silvicola
ssp. prima
Rhynchonellata - Orthida - Dicoelosiidae
Dicoelosia sp. King 1850
Dicoelosia cf. indenta (Cooper 1930)
Rhynchonellata - Orthida - Linoporellidae
Laticrura cf. erecta Wright 1964
Rhynchonellata - Orthida - Saukrodictyidae
Saukrodictya hibernica Wright 1964
Rhynchonellata - Athyridida - Meristellidae
Cryptothyrella crassa (Sowerby 1839)
ssp. incipiens
    = Hindella incipiens Williams 1951
Cocks 2014
Rhynchonellata - Atrypida - Atrypidae
Plectatrypa cf. sulevi
Rhynchonellata - Atrypida - Cyclospiridae
Cyclospira sp. Hall and Clarke 1893
Protozyga cf. perplexa Williams 1962
recombined as Cyclospira perplexa
Rhynchonellata - Atrypida - Anazygidae
Catazyga cf. hicksi (Reed 1905)
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides cf. asteroideus (Reed 1917)
Lingulata - Lingulida - Obolidae
Lingulella sp. Salter 1866
sp. A
Craniata - Craniopsida - Craniopsidae
Paracraniops sp. Williams 1963
Craniata - Craniida - Craniidae
Philhedra cf. grayii
Stenolaemata - Cyclostomata - Corynotrypidae
Corynotrypa sp. Bassler 1911
Stenolaemata - Cryptostomata - Ptilodictyidae
Ptilodictya sp. Lonsdale 1839
Stenolaemata - Trepostomata
Trepostomata indet. Ulrich 1882
Trilobita - Trinucleida - Trinucleidae
Tretaspis cf. hadelandica Stormer 1945
ssp. brachystichus
Trilobita - Lichida - Lichidae
? Platylichas sp. (Gürich 1901)
Trilobita - Proetida - Proetidae
Astroproetus sp. (Begg 1939)
original and current combination Proetus (Astroproetus)
Trilobita - Harpetida - Harpetidae
Paraharpes cf. ruddyi Whittington 1950
Trilobita - Corynexochida - Styginidae
? Stygina sp. Salter 1853
Trilobita - Corynexochida - Illaenidae
? Illaenus (Parillaenus) sp. Jaanusson 1954
sgn. (Parillaenus)
? Stenopareia sp. Holm 1886
Trilobita - Phacopida - Pterygometopidae
Calyptaulax sp. Cooper 1930
Trilobita - Phacopida - Encrinuridae
Atractopyge sp. Hawle and Corda 1847
Cybeloides (Paracybeloides) cf. girvanensis (Reed 1906)
original and current combination Cybeloides girvanensis
sgn. (Paracybeloides)
Trilobita - Phacopida - Cheiruridae
Pseudosphaerexochus sp. (Schmidt 1881)
original and current combination Cheirurus (Pseudosphaerexochus)
Sphaerocoryphe sp. Angelin 1854
Trilobita - Phacopida - Calymenidae
Flexicalymene quadrata (King 1923)
recombined as Gravicalymene quadrata
Prionocheilus sp. Rouault 1847
Trilobita - Odontopleurida - Odontopleuridae
Primaspis cf. evoluta (Törnquist 1884)
original and current combination Acidaspis evoluta
Ostracoda - Leperditellocopida - Primitiidae
Primitia sp. Jones and Holl 1923
see common names

Geography
Country:United Kingdom State/province:Wales
Coordinates: 52.9° North, 3.2° West (view map)
Paleocoordinates:42.5° South, 16.8° West
Geographic resolution:local area
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
*Epoch:Ashgill
*International age/stage:Middle Cautleyan - Rawtheyan
Key time interval:Cautleyan - Rawtheyan
Age range of interval:449.30000 - 445.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Dolhir
Stratigraphic resolution:member
Stratigraphy comments: Above basal units (Tyn-y-twmpath and Dolhir Limestone Mbrs are basal units)
Lithology and environment
Primary lithology:shelly/skeletal lithified sandy siltstone
Secondary lithology: mudstone
Lithology description: siltstones, mudstones, and associated minor coquinoid sandstones.
Environment:offshore
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:8291
Authorizer:J. Alroy, P. Wagner Enterer:M. Sommers, P. Wagner
Modifier:M. Sommers Research group:marine invertebrate
Created:2000-07-05 09:08:14 Last modified:2000-07-05 13:39:26
Access level:the public Released:2000-11-20 13:53:36
Creative Commons license:CC BY
Reference information

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

Secondary references:

62099 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]