Durlston Bay (DB114): Late/Upper Berriasian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes
- Hybodontiformes
|
||||||||||
Hybodontoidea indet.
Agassiz 1834
|
||||||||||
scales | ||||||||||
Chondrichthyes
- Hybodontiformes
- Polyacrodontidae
|
||||||||||
Polyacrodus parvidens
(Woodward 1916)
|
||||||||||
Chondrichthyes
- Hybodontiformes
- Hybodontidae
|
||||||||||
Egertonodus basanus
(Egerton 1845)
|
||||||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
|
||||||||||
Lonchidion inflexum
Underwood and Rees 2002
|
||||||||||
Polyacrodus rugianus
(Ansorge 1990)
|
||||||||||
recombined as Parvodus rugianus | ||||||||||
Reptilia
- Crocodylia
|
||||||||||
Crocodylia indet.
(Owen 1842)
|
||||||||||
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: | Late/Upper Berriasian | ||
Age range of interval: | 145.00000 - 140.20000 m.y. ago |
Stratigraphy
Geological group: | Purbeck | Formation: | Durlston | Member: | Stair Hole |
Local section: | Durlston Bay | Local bed: | DB114 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Durlston Formation is likely upper Berriasian in age based on magnetostratigraphy (Ogg et al. 1994; Ogg et al. 2008) and correlates to other upper Berriasian assemblages in Europe (e.g. Wimbledon and Hunt 1993). |
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: | 90715 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2009-08-13 09:52:21 | Last modified: | 2022-03-17 09:36:14 |
Access level: | the public | Released: | 2009-08-13 09:52:21 |
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] |