Howellites community, Berwyn Hills (Lower Cwm Rhiwarth): Soudleyan, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Ostracoda
- Palaeocopida
- Tetradellidae
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Tallinnella scripta
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Trilobita
- Asaphida
- Asaphidae
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Parabasilicus powisi
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Trilobita
- Trinucleida
- Trinucleidae
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Broeggerolithus soudleyensis
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Broeggerolithus broeggeri
(Bancroft 1929)
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Trilobita
- Phacopida
- Homalonotidae
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Brongniartella cf. ascripta
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Brongniartella minor
(Salter 1852)
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Trilobita
- Phacopida
- Calymenidae
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Flexicalymene sp.
Shirley 1936
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Bivalvia
- Lipanellidae
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Goniophorina sp.
Isberg 1934
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Modiolopsis modiolaris
(Conrad 1838)
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Tergomya
- Cyrtonellida
- Cyrtolitidae
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Cyrtolites sp.
Conrad 1838
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras sp.
Breynius 1832
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Gastropoda
- Euomphalina
- Platyceratidae
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Cyclonema crebristria
(M'Coy 1851)
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Gastropoda
- Murchisoniina
- Hormotomidae
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? Seelya sp.
Ulrich and Scofield 1897
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Gastropoda
- Bellerophontida
- Sinuitidae
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Sinuites soudleyensis
Reed 1921
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Gastropoda
- Bellerophontida
- Bellerophontidae
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Bucaniopsis sp.
(Ulrich and Scofield 1897)
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unclassified
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Bryozoa informal stick indet.
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Craniata
- Craniopsida
- Craniopsidae
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Paracraniops sp.
Williams 1963
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Lingulata
- Lingulida
- Obolidae
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Lingulella cf. ovata
(M'Coy 1846)
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Dinorthis berwynensis
(Whittington 1938)
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Dinorthis angusta
(Williams 1963)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella sp.
Hall and Clarke 1892
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Onniella cf. soudleyensis
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Rhynchonellata
- Orthida
- Harknessellidae
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Reuschella horderleyensis
Bancroft 1929
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Macrocoelia prolata
Williams 1963
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Leptaena ventricosa
Williams 1963
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Kiaeromena kjerulfi
(Holtedahl 1916)
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella spp.
Jones 1928
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Eoplectodonta sp.
Kozlowski 1929
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Strophomenata
- Strophomenida
- Aegiromenidae
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Sericoidea sp.
Lindström 1953
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Strophomenata
- Orthotetida
- Triplesiidae
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Bicuspina spiriferoides
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Crinoidea
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Crinoidea informal ossicles
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see common names |
Geography
Country: | United Kingdom | State/province: | Wales |
Coordinates: | 53.0° North, 3.0° West (view map) | ||
Paleocoordinates: | 52.2° South, 17.8° West | ||
Geographic resolution: | local area |
Time
Period: | Ordovician | Epoch: | Late Ordovician |
Stage: | Sandbian | 10 m.y. bin: | Ordovician 4 |
Key time interval: | Soudleyan | Graptolite zone: | Diplograptus multidens |
Age range of interval: | 458.4 - 457.4 m.y. ago |
Stratigraphy
Formation: | Cwm Rhiwarth | Member: | Lower | ||
Stratigraphic resolution: | member | ||||
Stratigraphy comments: Soudleyan part of Cwm Rhiwarth |
Lithology and environment
Primary lithology: | lithified silty "shale" |
Environment: | transition zone/lower shoreface |
Geology comments: Silty mudstone |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | paleoecologic analysis |
Metadata
Also known as: | Was: Howellites community, Berwyn Hills | ||
Database number: | 192387 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2018-03-28 20:10:06 | Last modified: | 2018-03-28 21:56:06 |
Access level: | the public | Released: | 2018-03-28 20:10:06 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
156. | R. K. Pickerill and P. J. Brenchley. 1979. Caradoc marine benthic communities of the South Berwyn Hills, North Wales. Palaeontology 22:229-264 [A. Miller/P. Novack-Gottshall/J. Alroy] |