Pontyfeni Fm, S. abyfrons biozone, Whitland, UK: Arenig, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Agnostida
- Metagnostidae
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? Arthrorhachis sp.
Hawle and Corda 1847
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| originally entered as "Arthrorhachis? sp." | ||||||||||
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Segmentagnostus sp.
Pek 1977
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| synonym of Corrugatagnostus | ||||||||||
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Trilobita
- Phacopida
- Encrinuridae
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Dindymene sp.
Hawle and Corda 1847
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Trilobita
- Ptychopariida
- Shumardiidae
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Shumardia sp.
Billings 1862
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Trilobita
- Trinucleida
- Trinucleidae
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Stapeleyella sp.
Whittard 1955
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Trilobita
- Asaphida
- Cyclopygidae
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Ellipsotaphrus sp.
Whittard 1952
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Stylophora
- Mitrata
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Mitrocystites sp.
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Stylophora
- Cornuta
- Cothurnocystidae
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Cothurnocystis sp.
Bather 1913
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Stylophora
- Cornuta
- Hanusiidae
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Reticulocarpos sp.
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Pterobranchia
- Graptoloidea
- Dichograptidae
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Didymograptus sp.
McCoy 1851
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| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 52.0° North, 5.0° West (view map) | ||
| Paleocoordinates: | 66.0° South, 20.5° West | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | ||
| 10 m.y. bin: | Ordovician 2 | ||
| *Period: | Early/Lower Ordovician | *Epoch: | Early/Lower Arenig |
| Key time interval: | Arenig | ||
| Age range of interval: | 477.70000 - 468.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Pontyfenni |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lithified "shale" |
| Secondary lithology: | chert |
| Environment: | marine indet. |
| Geology comments: Dark mudstone with siliceous nodules; deep (> 200 m) but oxygenated setting with blind trilobites | |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 3705 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-08-07 09:48:39 | Last modified: | 1999-08-07 12:48:39 |
| Access level: | the public | Released: | 2000-11-20 13:53:20 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 173. | R. A. Fortey and R. M. Owens. 1978. Early Ordovician (Arenig) stratigraphy and faunas of the Carmarthen District, southwest Wales. Bulletin of the British Museum of Natural History (Geology) 30(3):225-294 [A. Miller/P. Novack-Gottshall/P. Wagner] |