M. laevigata Assoc. of facies 5 and 6, Upper Bringewood Beds, Welsh Borderland: Gorstian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
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Anthozoa indet.
Ehrenberg 1834
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solitary trochoid coral | ||||||||||
Cephalopoda
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Cephalopoda indet.
Cuvier 1797
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Bivalvia
- Ostreida
- Pterineidae
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Pteronitella retroflexa
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Actinopteria sowerbyi
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Strophomenata
- Strophomenida
- Strophochonetidae
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Shagamella ludloviensis
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Protochonetes ludloviensis
Muir-Wood 1962
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Strophomenata
- Strophomenida
- Eopholidostrophiidae
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Mesopholidostrophia laevigata
(de Sowerby and Murchison 1839)
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Strophomenata
- Strophomenida
- Amphistrophiidae
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Amphistrophia funiculata
(M'Coy 1846)
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recombined as Amphistrophiella funiculata | ||||||||||
Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena depressa
(Sowerby 1824)
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recombined as Leptaena (Leptaena) depressa | ||||||||||
Strophomenata
- Strophomenida
- Strophonellidae
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Strophonella euglypha
(Dalman 1828)
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recombined as Strophoprion euglypha | ||||||||||
Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia filosa
(Sowerby 1839)
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recombined as Mesoleptostrophia filosa | ||||||||||
Strophomenata
- Strophomenida
- Shaleriidae
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Shaleria ornatella
(Davidson 1871)
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recombined as Shaleria (Janiomya) ornatella | ||||||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Camarotoechia nucula
(Sowerby 1839)
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recombined as Microsphaeridiorhynchus nucula | ||||||||||
genus name in quotes | ||||||||||
Rhynchonellata
- Rhynchonellida
- Hebetoechiidae
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Sphaerirhynchia wilsoni
(de Sowerby 1816)
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina hybrida
(Sowerby 1839)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis clivosa
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa reticularis
(Linnaeus 1758)
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original and current combination Anomia reticularis | ||||||||||
Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula lata
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Rhynchonellata
- Pentamerida
- Pentameridae
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Kirkidium knightii
(Sowerby 1813)
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recombined as Kirkidium knighti | ||||||||||
Rhynchonellata
- Spiriferida
- Cyrtiidae
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Eospirifer radiatus
(Sowerby 1834)
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella elegans
Muir-Wood 1925
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Craniata
- Craniopsida
- Craniopsidae
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Craniops implicata
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Lingulata
- Lingulida
- Lingulidae
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Lingula lewisii
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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Stenolaemata
- Cryptostomata
- Ptilodictyidae
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Ptilodictya gracile
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Trilobita
- Phacopida
- Dalmanitidae
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Dalmanites myops
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see common names |
Geography
Country: | United Kingdom | State/province: | England |
Coordinates: | 52.0° North, 3.0° West (view map) | ||
Paleocoordinates: | 27.9° South, 13.0° West | ||
Basis of coordinate: | based on political unit | ||
Geographic resolution: | basin |
Time
Period: | Silurian | Epoch: | Ludlow |
Stage: | Gorstian | 10 m.y. bin: | Silurian 2 |
*International age/stage: | Late/Upper Gorstian | ||
Key time interval: | Gorstian | ||
Age range of interval: | 427.40000 - 425.60000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Upper Bringewood | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: Age assignment based on ref. 6658. |
Lithology and environment
Primary lithology: | "cross stratification",shelly/skeletal grainstone |
Secondary lithology: | "shale" |
Includes fossils? | Y |
Lithology description: Facies 5: biocalcarenite with calcilutite matrix and shows gradations from mud-supported to grain-supported texture. Pellets, crinoid ossicles, brachiopod fragments, sponge spicules. Thin tabular beds throughout. Shale layers 1 cm thick or less between limestone beds. Facies 6: Crinoideal biosparrudite and coarse-grained biocalcarenite. Thin shale layers, but carbonates contain little clay. Biosparrudites grain-supported. Cross lamination of both planar and trough form. | |
Environment: | marine indet. |
Geology comments: Present in facies 5 and 6. Interpreted as shallow shelf with high energy. F6 includes shoal lime sand. Carbonate interruption of shoaling upwards sequence of terrigenous sediments. Bank system. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | paleoecologic analysis |
Metadata
Database number: | 23213 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | M. Uhen | Research group: | marine invertebrate |
Created: | 2002-07-10 14:41:07 | Last modified: | 2018-11-26 18:19:01 |
Access level: | the public | Released: | 2002-07-10 14:41:07 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
6670. | R. Watkins and C. J. Aithie. 1980. Carbonate shelf environments and faunal communities in the Upper Bringewood Beds of the British Silurian. Palaeogeography, Palaeoclimatology, Palaeoecology 29:341-368 [M. Foote/M. Foote/M. Foote] |