Homalonotus knightii-Acaste Assemblage at Hafod, Dyfed, Wales: Gorstian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Phacopida
- Homalonotidae
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Homalonotus knightii
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Trilobita
- Phacopida
- Acastidae
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Acaste sp.
Goldfuss 1843
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Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 52.0° North, 4.0° West (view map) | ||
| Paleocoordinates: | 28.0° South, 13.7° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Ludlow |
| Stage: | Gorstian | 10 m.y. bin: | Silurian 2 |
| Key time interval: | Gorstian | ||
| Age range of interval: | 427.40000 - 425.60000 m.y. ago |
Stratigraphy
| Stratigraphy comments: nilssoni-scanicus zones |
Lithology and environment
| Primary lithology: | sandstone |
| Environment: | marine indet. |
| Geology comments: "BA 1" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Assemblages similar to this are widespread, but this particular association is restricted to type locality. | |
Metadata
| Database number: | 23098 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2002-07-09 11:17:30 | Last modified: | 2018-11-26 18:04:37 |
| Access level: | the public | Released: | 2002-07-09 11:17:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6632. | A. T. Thomas and P. D. Lane. 1999. Trilobite assemblages of the North Atlantic Region. in A. J. Boucot and J. D. Lawson, eds. Paleocommunities--a case study from the Silurian and Lower Devonian. Cambridge University Press, Cambrdige 444-457. [M. Foote/M. Foote/M. Foote] |