Ludlow-Much Wenlock District #5: Ludfordian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Microsphaeridiorhynchia nucula
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4.93 %-specimens | |||||||||
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Rhopalonaria sp.
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0.13 %-specimens | |||||||||
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Crinoidea
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Crinoidea indet.
Miller 1821
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0.27 %-elements | |||||||||
| ossicles | ||||||||||
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Ostracoda
- Podocopida
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Calcaribeyrichia torosa
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0.13 %-specimens | |||||||||
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Ostracoda
- Podocopida
- Healdiidae
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Cytherellina siliqua
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3.01 %-specimens | |||||||||
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Ostracoda
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Kuresaaria circulata
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0.13 %-specimens | |||||||||
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Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes ludloviensis
Muir-Wood 1962
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59.12 %-specimens | |||||||||
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Rhynchonellata
- Orthida
- Draboviidae
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Salopina lunata
(Sowerby 1839)
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20.16 %-specimens | |||||||||
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea rugata
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1.50 %-specimens | |||||||||
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Stenolaemata
- Cystoporata
- Ceramoporidae
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Ceramopora sp.
Hall 1851
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0.96 %-specimens | |||||||||
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Stenolaemata
- Trepostomata
- Heterotrypidae
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Leioclema sp.
Ulrich 1882
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1.37 %-specimens | |||||||||
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Tentaculitida
- Cornulitidae
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Cornulites sp.
Schlotheim 1820
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0.13 %-specimens | |||||||||
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Tentaculitida
- Tentaculitidae
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Tentaculites tenuis
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0.27 %-specimens | |||||||||
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Hyolithida
- Hyolithidae
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Hyolithes forbesi
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0.13 %-specimens | |||||||||
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Cephalopoda
- Orthocerida
- Kionoceratidae
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Kionoceras angulatum
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0.13 %-specimens | |||||||||
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Michelinoceras sp.
Foerste 1932
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0.54 %-specimens | |||||||||
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Bivalvia
- Grammysiidae
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Fuchsella amygdalina
(Sowerby 1827)
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4.80 %-specimens | |||||||||
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Gastropoda
- Murchisoniina
- Loxonematidae
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Loxonema obsoletum
(de Sowerby and Murchison 1839)
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0.82 %-specimens | |||||||||
| recombined as Loxonema obsoleta | ||||||||||
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Gastropoda
- Naticopsidae
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Naticopsis cf. trevorpatriciorum
Peel 1975
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0.13 %-specimens | |||||||||
| corrected as Naticopsis trevorpaticiciorum | ||||||||||
| 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: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] |