Ludlow-Much Wenlock District #5: Ludfordian, 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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0.27 %-elements | |||||||||
ossicles | ||||||||||
unclassified
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Microsphaeridiorhynchia nucula
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4.93 %-specimens | |||||||||
Rhopalonaria sp.
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0.13 %-specimens | |||||||||
Ostracoda
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Kuresaaria circulata
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0.13 %-specimens | |||||||||
Ostracoda
- Podocopida
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Calcaribeyrichia torosa
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0.13 %-specimens | |||||||||
Ostracoda
- Podocopida
- Healdiidae
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Cytherellina siliqua
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3.01 %-specimens | |||||||||
Gastropoda
- Naticopsidae
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Naticopsis cf. trevorpatriciorum
Peel 1975
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0.13 %-specimens | |||||||||
Gastropoda
- Murchisoniina
- Loxonematidae
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Loxonema obsoletum
(de Sowerby and Murchison 1839)
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0.82 %-specimens | |||||||||
Cephalopoda
- Orthocerida
- Orthoceratidae
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Michelinoceras sp.
Foerste 1932
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0.54 %-specimens | |||||||||
Cephalopoda
- Orthocerida
- Kionoceratidae
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Kionoceras angulatum
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0.13 %-specimens | |||||||||
Bivalvia
- Grammysiidae
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Fuchsella amygdalina
(Sowerby 1827)
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4.80 %-specimens | |||||||||
Stenolaemata
- Trepostomata
- Heterotrypidae
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Leioclema sp.
Ulrich 1882
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1.37 %-specimens | |||||||||
Stenolaemata
- Cystoporata
- Ceramoporidae
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Ceramopora sp.
Hall 1851
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0.96 %-specimens | |||||||||
Tentaculitida
- Cornulitidae
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Cornulites sp.
Schlotheim 1820
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0.13 %-specimens | |||||||||
Tentaculitida
- Tentaculitidae
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Tentaculites tenuis
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0.27 %-specimens | |||||||||
Lingulata
- Lingulida
- Discinidae
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Orbiculoidea rugata
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1.50 %-specimens | |||||||||
Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes ludloviensis
Muir-Wood 1962
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59.12 %-specimens | |||||||||
Rhynchonellata
- Orthida
- Draboviidae
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Salopina lunata
(Sowerby 1839)
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20.16 %-specimens | |||||||||
Hyolithida
- Hyolithidae
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Hyolithes forbesi
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0.13 %-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: | 425.6 - 423 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:729 total specimens. |
Metadata
Database number: | 8299 | ||
Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
Created: | 2000-07-05 14:40:14 | Last modified: | 2000-07-05 17:40:14 |
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] |