Rushton Branch, Dryton Brook: St Davids, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Agraulos robustus
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Cobbold and Pocock 1934 | ||||||
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= ? Parasolenapleura peregrina
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Cobbold and Pocock 1934 | ||||||
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Liostracus indet.
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Cobbold and Pocock 1934 | ||||||
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= indet. dubium
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Cobbold and Pocock 1934 | ||||||
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Liostracus sp.
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Cobbold and Pocock 1934 | ||||||
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= indet. indet.
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Cobbold and Pocock 1934 | ||||||
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Agnostida
- Spinagnostidae
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Agnostus lens
Grönwall 1902
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Cobbold and Pocock 1934 | ||||||
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= Cotalagnostus lens
Grönwall 1902
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Cobbold and Pocock 1934 | ||||||
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Agnostus rotundus
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Cobbold and Pocock 1934 | ||||||
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= Cotalagnostus ? lens
Grönwall 1902
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Cobbold and Pocock 1934 | ||||||
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Agnostus parvifrons
Linnarsson 1869
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Cobbold and Pocock 1934 | ||||||
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= Hypagnostus mammillatus
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Cobbold and Pocock 1934 | ||||||
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Agnostida
- Ptychagnostidae
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Agnostus lundgreni
Tullberg 1880
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Cobbold and Pocock 1934 | ||||||
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= Ptychagnostus hybridus
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Corynexochida
- Dorypygidae
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Dorypyge rushtonensis
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Redlichiida
- Paradoxididae
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Paradoxides forchammeri
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Cobbold and Pocock 1934 | ||||||
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= Paradoxides indet.
Brongniart 1822
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Cobbold and Pocock 1934 | ||||||
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Paradoxides sp.
Brongniart 1822
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Redlichiida
- Agraulidae
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Liostracus dubius
|
Cobbold and Pocock 1934 | ||||||
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= indet. dubium
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Cobbold and Pocock 1934 | ||||||
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= ? Agaso sp.
Cobbold 1934
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Cobbold and Pocock 1934 | ||||||
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Liostracus rushtonensis
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Cobbold and Pocock 1934 | ||||||
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= Agaso rushtonensis
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Cobbold and Pocock 1934 | ||||||
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Liostracus pringlei
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Cobbold and Pocock 1934 | ||||||
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= Agaso rushtonensis
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Cobbold and Pocock 1934 | ||||||
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Liostracus bruno
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Cobbold and Pocock 1934 | ||||||
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= Agaso bruno
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Ptychopariida
- Alokistocaridae
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Solenopleura angustiora
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Cobbold and Pocock 1934 | ||||||
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= ? Elrathia angustiora
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Ptychopariida
- Solenopleuridae
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Solenopleura applanata
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Cobbold and Pocock 1934 | ||||||
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Solenopleura indet.
Angelin 1854
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Cobbold and Pocock 1934 | ||||||
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= Solenopleura aff. brachymetopa
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Cobbold and Pocock 1934 | ||||||
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Solenopleura brachymetopa
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Cobbold and Pocock 1934 | ||||||
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= Solenopleura aff. conifrons
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Cobbold and Pocock 1934 | ||||||
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Solenopleura cf. brachymetopa
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Cobbold and Pocock 1934 | ||||||
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= Solenopleura cf. nutia
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Cobbold and Pocock 1934 | ||||||
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Solenopleura cf. bucculenta
Grönwall 1902
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Cobbold and Pocock 1934 | ||||||
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= Solenopleura spp.
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Cobbold and Pocock 1934 | ||||||
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Trilobita
- Olenida
- Andrarinidae
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Liostracus pococki
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Cobbold and Pocock 1934 | ||||||
| replaced by Andrarina | |||||||
| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | Shropshire |
| Coordinates: | 52.0° North, 2.0° West (view map) | ||
| Paleocoordinates: | 85.8° South, 33.1° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Miaolingian |
| 10 m.y. bin: | Cambrian 3-4 | ||
| Key time interval: | St Davids | ||
| Age range of interval: | 509.00000 - 497.00000 m.y. ago |
Stratigraphy
| Formation: | Upper Comley Sandstone | Member: | Paradoxides intermedius Grit |
| Stratigraphic resolution: | member |
Lithology and environment
| Primary lithology: | calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: The basal grit bed is calcareous in places and contains pebbles and abundant rounded quartz grains. Locally it is highly fossiliferous, and many of the fossils, notably the larger trilobites, were already in fragmentary condition when deposited. | |
| Environment: | shoreface |
| Geology comments: The basal grit
bed is calcareous in places and contains pebbles and abundant rounded quartz grains. Locally it is highly fossiliferous, and many of the fossils, notably the larger trilobites, were already in fragmentary condition when deposited. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | variable |
| Abundance in sediment: | common |
| Disassociated major elements: | some |
Collection methods and comments
| Collection methods: | bulk,chemical,acetic,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
| Collection method comments: Some material also held at the British Geological Survey, Keyworth | |
| Taxonomic list comments:Rushton 2001 revised the original list of Cobbold and Pocock 1934 | |
Metadata
| Also known as: | Cobbold and Pocock 1934 Locality 9 | ||
| Database number: | 55509 | ||
| Authorizer: | A. McGowan | Enterer: | A. McGowan |
| Modifier: | A. McGowan | Research group: | marine invertebrate |
| Created: | 2005-10-28 06:36:37 | Last modified: | 2005-11-09 03:01:15 |
| Access level: | the public | Released: | 2005-10-28 06:36:37 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 14979. | A. W. A. Rushton and V. Berg-Madsen. 2001. The age of the Middle Cambrian ‘Paradoxides forchhammeri Grit’ of the Wrekin district, Shropshire, England. Transactions of the Royal Society of Edinburgh 92:335-346 [A. McGowan/A. McGowan/M. Uhen] |
Secondary references:
| 14978 | E.S. Cobbold and R. W. Pocock. 1934. The Cambrian area of Rushton (Shropshire). Philosophical Transactions of the Royal Society of London B 223:305-409 [A. McGowan/A. McGowan] |