Ophiuroidea, Callovian, Weymouth, Dorset, UK: Late Callovian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Ophiuroidea
- Ophiurida
- Ophiosphalmidae
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| 5 elements | |||||||
| see common names | |||||||
Geography
| Country: | United Kingdom | County: | Dorset |
| Coordinates: | 50.6° North, 2.5° West (view map) | ||
| Paleocoordinates: | 33.8° North, 17.2° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 1 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Callovian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Late Callovian | ||
| Age range of interval: | 165.3 - 161.5 m.y. ago |
Stratigraphy
| Geological group: | Ancholme | Formation: | Oxford Clay | Member: | Lower |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | unlithified marl |
| Includes fossils? | Y |
| Lithology description: Calciferous Grit | |
| Environment: | deep subtidal shelf |
Taphonomy
| Modes of preservation: | body,replaced with calcite,replaced with pyrite |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
Metadata
| Database number: | 59044 | ||
| Authorizer: | L. Villier | Enterer: | J. Millet |
| Modifier: | M. Carrano | Research group: | marine invertebrate |
| Created: | 2006-03-07 09:42:04 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2006-03-07 09:42:04 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 16757. | H. Hess. 1964. Die Ophiuren des englischen Jura. Eclogae Geologicae Helvetia 57(2):755-821 [L. Villier/J. Millet] |
Secondary references:
| 16758 | T. Wright. 1863. Monograph on the British fossil Echinodermata of the Oolitic Formations. Volume 2 - The Asteroidea and Ophiuroidea. Monographs of the Palaeontographical Society 1861:1-130 [L. Villier/J. Millet/L. Villier] |