Table Ledge, east of Lyme Regis: Semicostatum, United Kingdom
collected by L.F. Spath
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Arietitidae
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Arnioceras pseudokridion n. sp.
Spath 1924
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| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | England | County: | Dorset |
| Coordinates: | 50.7° North, 2.9° West (view map) | ||||
| Paleocoordinates: | 37.4° North, 3.8° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early Jurassic |
| Stage: | Sinemurian | 10 m.y. bin: | Jurassic 1 |
| Key time interval: | Semicostatum | ||
| Age range of interval: | 199.5 - 192.9 m.y. ago |
Stratigraphy
| Geological group: | Lias | Formation: | Charmouth Mudstone | Member: | Shales-with-Beef |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Lower Sinemurian, Semicostatum Zone, Scipionianum subzone, "The fauna of Table Ledge (Bed 53), however, marks the top of the subchronozone, is frequently seen in fallen blocks in the latter area" | |||||
Lithology and environment
| Primary lithology: | lithified not reported | ||
| Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,adpression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
| Collectors: | L.F. Spath |
Metadata
| Also known as: | Bed 53 | ||
| Database number: | 234340 | ||
| Authorizer: | P. Scofield | Enterer: | P. Scofield |
| Modifier: | P. Scofield | Research group: | paleoentomology |
| Created: | 2024-03-31 14:24:51 | Last modified: | 2024-03-31 14:26:23 |
| Access level: | the public | Released: | 2024-03-31 14:24:51 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 88047. | L.F. Spath. 1924. The ammonites of the Blue Lias. Proceedings of the Geologists’ Association 35:186-211, 18 Pl [P. Scofield/P. Scofield/P. Scofield] |