Lingula lata-Saetograptus leintwardiensis Association in Welsh Borderland: 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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Pterobranchia
- Graptoloidea
- Monograptidae
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Saetograptus leintwardiensis
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Rhynchonellata
- Rhynchonellida
- Hebetoechiidae
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Sphaerirhynchia wilsoni
(de Sowerby 1816)
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Bivalvia
- Cyrtodontida
- Cardiolidae
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Cardiolidae indet.
Hoernes 1884
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| cardiolid bivalves | ||||||||||
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Bivalvia
- Ostreida
- Pterineidae
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Pterineidae indet.
Miller 1877
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| pterineid bivalves | ||||||||||
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Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 52.0° North, 3.0° West (view map) | ||
| Paleocoordinates: | 26.2° South, 12.5° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Ludlow |
| Stage: | Ludfordian | 10 m.y. bin: | Silurian 2 |
| *International age/stage: | Early/Lower Ludfordian | ||
| Key time interval: | Ludfordian | Zone: | Saetograptus leintwardiensis |
| Age range of interval: | 425.60000 - 423.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | planar lamination siltstone |
| Lithology description: "laminated siltstone facies" | |
| Environment: | marine indet. |
| Geology comments: "Laminated siltstone facies, including thick trough sequences...Lingula lata has a distribution cenetered in shelf edge to trough areas...Planktic graptolites form the only other common fauna...Shelly benthic faunas incorporated within slump units in trough areas derived from offshore shelf environments...The BA assignment is difficult and might be anywhere from 3 to 5 or more...however, proximity to [many BA 2,3 and 4 units] suggests that a BA 4-5 position is most likely." | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 23112 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2002-07-09 15:33:21 | Last modified: | 2018-11-26 18:08:18 |
| Access level: | the public | Released: | 2002-07-09 15:33:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6652. | L. Cherns. 1999. Faunal associations of the Lower Leintwardine Formation of the Anglo-Welsh Basin. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 373-379 [M. Foote/M. Foote/M. Foote] |