Durlston Bay (DB89): Middle Berriasian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Egertonodus basanus
(Egerton 1845)
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | England | County: | Dorset |
| Coordinates: | 50.6° North, 2.0° West (view map) | ||||
| Paleocoordinates: | 41.5° North, 7.9° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Berriasian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Middle Berriasian | ||
| Age range of interval: | 142.70000 - 140.60000 m.y. ago |
Stratigraphy
| Geological group: | Purbeck | Formation: | Lulworth | Member: | Worbarrow Tout |
| Local section: | Durlston Bay | Local bed: | DB89 | ||
| Local order: | bottom to top | ||||
| Stratigraphy comments: from the uppermost part of the Lulworth | |||||
Lithology and environment
| Primary lithology: | lime mudstone |
| Lithology description: "micrite" | |
| Environment: | lagoonal |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
| Disassociated minor elements: | many |
| Bioerosion: | occasional |
| Temporal resolution: | time-averaged |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | bulk,chemical,acetic,sieve,field collection |
| Minimum sieve size: | 0.355 |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
| Collection method comments: bulk samples throughout the section "varied in size from 1 to 25 kg" and material "was principally obtained by [acetic] acid treatment of limestones" before washing and picking | |
Metadata
| Database number: | 90712 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2009-08-13 09:46:56 | Last modified: | 2013-06-24 17:04:20 |
| Access level: | the public | Released: | 2009-08-13 09:46:56 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 30534. | C. J. Underwood and J. Rees. 2002. Selachian faunas from the lowermost Purbeck Group of Dorset, southern England. Special Papers in Palaeontology 68:83-101 [J. Alroy/J. Alroy] |