Charmouth area, Ichthyosaurus anningae type locality: Early/Lower Pliensbachian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Ichthyosauridae
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Ichthyosaurus anningae n. sp.
Lomax and Massare 2015
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3 individuals | |||||||||
| Holotype: DONMG:1983.98, an incomplete skeleton comprising the skull, pectoral girdle, two humeri, anterior trunk, and scattered portions of the posterior skeleton, including two femora and an ilium. It is larger than any of the referred specimens and has more precisely known stratigraphic information. Referred specimens (NHMUK OR 35566, NHMUK OR 120) from Lyme Regis but precise locality unknown | ||||||||||
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Cephalopoda
- Belemnitida
- Hastitidae
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Bairstowius junceus
(Phillips 1867)
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1 specimen | |||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | England | County: | Dorset |
| Coordinates: | 50.7° North, 2.9° West (view map) | ||||
| Paleocoordinates: | 37.9° North, 6.4° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Pliensbachian | 10 m.y. bin: | Jurassic 2 |
| Key time interval: | Early/Lower Pliensbachian | Ammonoid zone: | polymorphus |
| Age range of interval: | 192.90000 - 184.20000 m.y. ago |
Stratigraphy
| Geological group: | Lias | Formation: | Charmouth Mudstone | Member: | Stonebarrow Marls |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: From bed 110, polymorphus subzone of the jamesoni Zone, Stonebarrow Marl Member of the Charmouth Mudstone Formation | |||||
Lithology and environment
| Primary lithology: | marl |
| Secondary lithology: | mudstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 176440 | ||
| Authorizer: | V. Fischer | Enterer: | V. Fischer |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2016-02-12 08:48:56 | Last modified: | 2018-12-12 10:18:13 |
| Access level: | the public | Released: | 2016-02-12 08:48:56 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 58056. | D. R. Lomax and J. A. Massare. 2015. A new species of Ichthyosaurus from the Lower Jurassic of west Dorset, England, U.K. Journal of Vertebrate Paleontology e903260:1-14 [V. Fischer/V. Fischer] |