Broad Ledge (Bucklandi beds): Early Sinemurian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bennettitales
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Otopteris obtusa
Lindley and Hutton 1834
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Equisetopsida
- Araucariaceae
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Araucarites peregrinus
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Rhynchonellata
- Rhynchonellida
- Wellerellidae
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Rhynchonella variabilis
Schlotheim 1813
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Bivalvia
- Ostreida
- Gryphaeidae
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Gryphaea incurva
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Bivalvia
- Pectinida
- Limidae
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Lima antiquata
Sowerby 1818
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Bivalvia
- Pectinida
- Pectinidae
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Lima gigantea
Gray 1825
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Cephalopoda
- Ammonitida
- Liparoceratidae
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Ammonites angulatus
Quenstedt 1856
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Cephalopoda
- Ammonitida
- Arietitidae
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Ammonites rotiformis
Sowerby 1824
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Ammonites conybeari
Sowerby 1816
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Cephalopoda
- Ammonitida
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Ammonites bucklandi
Sowerby 1816
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Echinoidea
- Camarodonta
- Echinidae
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Echinidae indet.
Gray 1825
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Echinoidea
- Diplopodiidae
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Pseudodiadema sp.
Desor 1858
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Crinoidea
- Isocrinida
- Pentacrinitidae
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Pentacrinus sp.
Miller 1821
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Pentacrinus tuberculatus
Quenstedt 1858
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Hybodus sp.
Agassiz 1834
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Reptilia
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Temnodontosaurus eurycephalus n. sp.
McGowan 1974
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McGowan 1974 | |||||||||
| BMNH R1157, isolated skull (holotype) | ||||||||||
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Reptilia
- Ichthyosauridae
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Ichthyosaurus tenuirostris
Conybeare 1822
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Ichthyosaurus communis
Conybeare 1821
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Ichthyosaurus intermedius
Conybeare 1822
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Reptilia
- Proteosauridae
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Ichthyosaurus platyodon
Conybeare 1822
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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: | Early Sinemurian | Ammonoid zone: | Arietites bucklandi |
| Age range of interval: | 199.5 - 192.9 m.y. ago |
Stratigraphy
| Geological group: | Lias | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: 27 beds | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
Metadata
| Also known as: | Grey Ledge | ||
| Database number: | 140334 | ||
| Authorizer: | P. Mannion, M. Carrano | Enterer: | J. Tennant, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2013-03-08 00:28:41 | Last modified: | 2022-09-28 14:03:38 |
| Access level: | the public | Released: | 2013-03-08 00:28:41 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 32796. | T. Wright. 1860. On the Zone of Avicula contorta, and the Lower Lias of the South of England. Quarterly Journal of the Geological Society 16:374-411 [M. Carrano/H. Street] |
Secondary references:
| 45402 | C. McGowan. 1974. A revision of the longipinnate ichthyosaurs of the Lower Jurassic of England, with descriptions of two new species (Reptilia: Ichthyosauria). Life Sciences Contribution of the Royal Ontario Museum 97 [P. Mannion/J. Tennant] |