Ludlow-Much Wenlock District #3: Ludfordian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Lingula lata
Portlock 1843
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0.44 %-specimens | ||||||
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Microsphaeridiorhynchia nucula
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27 %-specimens | ||||||
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Ostracoda
- Podocopida
- Bairdiocyprididae
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Cytherellina siliqua
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0.66 %-specimens | ||||||
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Polychaeta
- Serpulimorpha
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Serpulites longissimus
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1.66 %-specimens | ||||||
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Bivalvia
- Grammysiidae
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Fuchsella amygdalina
(Sowerby 1827)
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3.66 %-specimens | ||||||
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Bivalvia
- Ostreida
- Pterineidae
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Pteronitella retroflexa
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3.55 %-specimens | ||||||
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Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes ludloviensis
Muir-Wood 1962
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46.77 %-specimens | ||||||
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Rhynchonellata
- Orthida
- Draboviidae
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Salopina lunata
(Sowerby 1839)
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15.0 %-specimens | ||||||
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella elegans
Muir-Wood 1925
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0.11 %-specimens | ||||||
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea rugata
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1.11 %-specimens | ||||||
| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 52.5° North, 2.6° West (view map) | ||
| Paleocoordinates: | 25.7° South, 12.3° West | ||
| Geographic resolution: | outcrop |
Time
| Period: | Silurian | Epoch: | Ludlow |
| Stage: | Ludfordian | 10 m.y. bin: | Silurian 2 |
| *Period: | Late/Upper Silurian | *Epoch: | Late/Upper Ludlovian |
| *International age/stage: | Late/Upper Ludfordian | ||
| Key time interval: | Ludfordian | ||
| Age range of interval: | 425.60000 - 423.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Overton |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | current ripples,wave ripples,bioturbation,shelly/skeletal lithified siltstone |
| Lithology description: interbedded highly bioturbated calcareous siltstones in which most lamination destroyed by bioturbation. alternates with thin 'storm generated' siltstone and shell laminae. minor scour channels and slumping. occassional symmetric and asymmetric ripple laminae. | |
| Environment: | offshore |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:900 total specimens. | |
Metadata
| Database number: | 8297 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
| Created: | 2000-07-05 14:21:38 | Last modified: | 2000-07-05 17:21:38 |
| Access level: | the public | Released: | 2000-11-20 13:53:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 570. | D. D. J. Antia. 1981. Faunas from the Upper Silurian (Upper Ludlovian) in the Ludlow-Much Wenlock District, England. Geological Journal 16:137-147 [J. Alroy/M. Sommers/P. Wagner] |