Llandeilo Siltstone-mudstone facies, Llandeilo, Wales, UK: Middle Llandeilo, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Lingulata
- Lingulida
- Pseudolingulidae
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Pseudolingula sp.
Mickwitz 1909
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Rhynchonellata
- Orthida
- Heterorthidae
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Tissintia sp.
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella sp.
Hall and Clarke 1892
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Trilobita
- Asaphida
- Asaphidae
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Ogygiocarella sp.
Harrinton and Leanza 1957
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Basilicus sp.
Salter 1849
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Trilobita
- Trinucleida
- Trinucleidae
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Marrolithoides sp.
Williams 1948
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Geography
| Country: | United Kingdom | State/province: | Wales |
| Coordinates: | 52.0° North, 4.0° West (view map) | ||
| Paleocoordinates: | 50.9° South, 18.6° West | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 |
| *Period: | Middle Ordovician | *Epoch: | Middle Llandeilo |
| Key time interval: | Middle Llandeilo | ||
| Age range of interval: | 461.3 - 458.4 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphy comments: Facies assemblage of formations in the Type Llandeilo |
Lithology and environment
| Primary lithology: | lithified "shale" |
| Secondary lithology: | siltstone |
| Environment: | transition zone/lower shoreface |
| Geology comments: Thin to medium-bedded mudstone and siltstone, irregular rhythmites, absence of large-scale structures; above normal wave base | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 3365 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 1999-07-31 07:08:38 | Last modified: | 2018-11-26 16:42:34 |
| Access level: | the public | Released: | 1999-07-31 07:08:38 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 163. | C. J. Wilcox and M. G. Lockley. 1981. A reassessment of facies and faunas the type Llandeilo (Ordovician), Wales. Palaeogeography, Palaeoclimatology, Palaeoecology 34(3-4):285-314 [A. Miller/P. Novack-Gottshall] |