Hyattidina canalis Community in Dyfed, Wales: Ludfordian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes ludloviensis
Muir-Wood 1962
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella elegans
Muir-Wood 1925
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Rhynchonellata
- Athyridida
- Hyattidinidae
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Hyattidina canalis
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Microsphaeridiorhynchus nucula
(Sowerby 1839)
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Bivalvia
- Ostreida
- Pterineidae
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Pteronitella retroflexa
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Gastropoda
- Bellerophontida
- Tropidodiscidae
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Temnodiscus murchisoni
(de Ferrusac and d'Orbigny 1840)
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recombined as Pharetrolites murchisoni | ||||||||||
Gastropoda
- Murchisoniina
- Loxonematidae
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Loxonema spp.
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Crinoidea
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Crinoidea indet.
Miller 1821
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columnals | ||||||||||
see common names |
Geography
Country: | United Kingdom | State/province: | England |
Coordinates: | 52.0° North, 4.0° West (view map) | ||
Paleocoordinates: | 26.3° South, 13.2° West | ||
Basis of coordinate: | based on political unit | ||
Geographic resolution: | local area |
Time
Period: | Silurian | Epoch: | Ludlow |
Stage: | Ludfordian | 10 m.y. bin: | Silurian 2 |
Key time interval: | Ludfordian | ||
Age range of interval: | 425.60000 - 423.00000 m.y. ago |
Stratigraphy
Stratigraphy comments: Cennen Formation through Tilestones Formation |
Lithology and environment
Primary lithology: | argillaceous siltstone |
Secondary lithology: | micaceous sandstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: "The community is present in a range of lithofacies from muddy siltstones (Lower Roman Camp Formation) to find micaceous sandstones in the Long Quarry Member of the Tilestones Formation; it is also present in the mixed lithofacies of the Cennen Formation." | |
Environment: | marine indet. |
Geology comments: "BA 2-3...The range of deposits is comparable with that in prograding delta systems, in which muddy siltstone represents prodelta and mixed lithofacies (sst, siltst, mudst, and local congl) and micaceous sst represent delta front. Areal restriction of community may reflect freshwater influence, an effect not experienced elsewhere in Wales and Welsh Borderland." |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | paleoecologic analysis |
Collection method comments: Abundances (present, common, fairly common) are given. |
Metadata
Database number: | 23103 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | M. Uhen | Research group: | marine invertebrate |
Created: | 2002-07-09 13:09:25 | Last modified: | 2018-11-26 18:05:04 |
Access level: | the public | Released: | 2002-07-09 13:09:25 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
6651. | K. E. S. Bradfield. 1999. Fossil communities of the late Ludlow and early Pridoli in Wales and the Welsh Borderland. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 370-372 [M. Foote/M. Foote/M. Foote] |