Horderleyella/Bryo Comm Samp F35, Flags and Grits, Ffairfach Group: Late/Upper Llanvirn, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
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Crinoidea indet.
Miller 1821
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Strophomenata
- Orthotetida
- Triplesiidae
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Triplesia edgelliana
(Davidson 1869)
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1 individual | ||||||
Strophomenata
- Strophomenida
- Rafinesquinidae
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Macrocoelia llandeiloensis
(Davidson 1871)
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3 individuals | ||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Rostricellula triangularis
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1 individual | ||||||
Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella parva
Williams 1949
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47 individuals | ||||||
Rhynchonellata
- Orthida
- Harknessellidae
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Horderleyella sp.
Bancroft 1928
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71 individuals | ||||||
unclassified
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Bryozoa indet.
Ehrenberg 1831
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25 individuals | ||||||
Stenolaemata
- Cryptostomata
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Cryptostomata indet.
Vine 1884
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1 individual | ||||||
Stenolaemata
- Trepostomata
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Trepostomata indet.
Ulrich 1882
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128 individuals | ||||||
Trilobita
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Trilobita indet.
Walch 1771
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2 individuals | ||||||
Trilobita
- Asaphida
- Asaphidae
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Basilicus tyrannus
(Murchison 1839)
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5 individuals | ||||||
Hexactinellida
- Lyssacinosa
- Stiodermatidae
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Hyalostelia fasicula
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15 individuals | ||||||
see common names |
Geography
Country: | United Kingdom |
Coordinates: | 52.0° North, 4.0° West (view map) |
Paleocoordinates: | 58.0° South, 19.7° West |
Geographic resolution: | small collection |
Time
Period: | Ordovician | Epoch: | Middle Ordovician |
Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 |
Key time interval: | Late/Upper Llanvirn | ||
Age range of interval: | 461.30000 - 458.40000 m.y. ago |
Stratigraphy
Formation: | Flags and Grits | ||||
Local section: | Ffairfach | Local bed: | F35 | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Ffairfach Section Sample F35 JA: originally entered as Lower Llandeilo and resolved to the formation level, but Upper Llanvirn according to the authors and certainly resolved to the bed level |
Lithology and environment
Primary lithology: | lithified sandstone |
Environment: | shoreface |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | bulk,sieve |
Reason for describing collection: | paleoecologic analysis |
Taxonomic list comments:Brachiopod faunal associations |
Metadata
Database number: | 69567 | ||
Authorizer: | A. Miller | Enterer: | A. Miller |
Modifier: | J. Alroy | Research group: | marine invertebrate |
Created: | 2007-02-27 16:49:32 | Last modified: | 2011-10-18 01:29:34 |
Access level: | the public | Released: | 2007-02-27 16:49:31 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
162. | A. Williams, M. G. Lockley, and J. M. Hurst. 1981. Benthic palaeocommunities represented in the Ffairfach Group and coeval Ordovician successions of Wales. Palaeontology 24(4):661-694 [A. Miller/P. Novack-Gottshall/J. Alroy] |