Double Arches [Shenley Limestone]: Early Albian, United Kingdom
collected by Gale, Jarvis 1974
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Crinoidea
- Cyclocrinidae
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Cyclocrinus variolarius
(Seeley 1866)
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22 specimens | ||||||
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Crinoidea
- Millericrinida
- Apiocrinitidae
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Apiocrinites gillieroni
(de Loriol 1877)
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294 specimens | ||||||
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Crinoidea
- Roveacrinida
- Roveacrinidae
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Discocrinus integer n. sp.
Hess and Gale 2010
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3 specimens | ||||||
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Crinoidea
- Cyrtocrinida
- Sclerocrinidae
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Torynocrinus canon
Seeley 1866
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120 specimens | ||||||
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Torynocrinus globosus n. sp.
Hess and Gale 2010
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11 specimens | ||||||
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Crinoidea
- Isocrinida
- Isocrinidae
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Balanocrinus smithi n. sp.
Hess and Gale 2010
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2223 specimens | ||||||
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Isocrinus legeri
(Repelin 1899)
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1466 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | England |
| Coordinates: | 51.9° North, 0.7° West (view map) | ||
| Paleocoordinates: | 40.5° North, 6.3° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Early Albian | Ammonoid zone: | Leymeriella regularis |
| Age range of interval: | 113 - 109.9 m.y. ago |
Stratigraphy
| Formation: | Shenley Limestone | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: The Shenley Limestone is found at the contact between the clastic Lower Greensand and Gault Clay formations. AGE: Early Albian; Leymeriella regularis Subzone. STRATIGRAPHIC POSITION: | |||||
Lithology and environment
| Primary lithology: | glauconitic,pebbly lithified sandy wackestone |
| Lithology description: SPECIFIC LITHOLOGY: Wackestone with 10–30% quartz sand and occasional clasts of ironstone and glauconitized limestone pebbles. LITHIFICATION: Not explicitly stated, but probably lithified. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,original calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils | ||
| Collection methods: | bulk,surface (float),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | BMNH | ||
| Collectors: | Gale, Jarvis | Collection dates: | 1974 |
| Collection method comments: COLLECTOR: A. Gale, J. Jarvis, 1974. REPOSITORY: British Museum of Natural History (BMNH). | |||
| Taxonomic list comments:COVERAGE: Limited to crinoids, but other macroinvertebrate groups said to be present. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications. | |||
Metadata
| Database number: | 161933 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2014-09-16 13:36:26 | Last modified: | 2014-09-16 13:58:48 |
| Access level: | the public | Released: | 2014-09-16 13:36:26 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 52753. | H. Hess and A. S. Gale. 2010. Crinoids from the Shenley Limestone (Albian) of Leighton Buzzard, Bedfordshire, UK. Journal of Systematic Palaeontology 8(3):427-447 [A. Hendy/A. Hendy] |