Stretham, Great Ouse River Board: Early Kimmeridgian, United Kingdom
collected by Mr W.W. Woolfe & Mr B. Woolfe 1952-1956
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Plesiosauria
- Pliosauridae
|
||||||||||
| 1 individual | ||||||||||
| CAMSM J.35990, a partial skeleton of a giant pliosaurid | ||||||||||
| Knutsen 2012 | ||||||||||
| The specimen (CAMSM J.35990) is non-diagnostic at the species level and should be referred to Pliosaurus sp. until more reliable postcranial characters are found | ||||||||||
| Benson et al. 2013 | ||||||||||
| CAMSM J.35990 differs from most specimens of Pliosaurus in possessing subtrihedral teeth, which are otherwise present only definitely in Pliosaurus kevani n. sp., and possibly also in Gallardosaurus iturraldei from the Oxfordian of Cuba (M.E. pers. obs.; see below). Because of the paucity of preserved postcrania in several other species of Pliosaurus, especially P. kevani, which is known only from a skull, CAMSM J.35990 cannot be confidently diagnosed as a distinct species, or referred to an existing species with certainty. However, we provisionally refer it to Pliosaurus cf. kevani based on the presence of subtrihedral teeth and very large body size | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | England | County: | Cambridgeshire |
| Coordinates: | 52.3° North, 0.2° East (view map) | ||||
| Paleocoordinates: | 34.4° North, 15.0° East (Wright 2013) | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Jurassic | Epoch: | Late Jurassic |
| Stage: | Kimmeridgian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Early Kimmeridgian | Ammonoid zone: | Aulacostephanus mutabilis |
| Age range of interval: | 154.8 - 152.21 m.y. ago |
Stratigraphy
| Geological group: | Ancholme | Formation: | Kimmeridge Clay | ||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: "Aulacostephanus mutabilis ammonite zone (Taylor & Cruickshank, 1993; Gallois, 2000) of the Lower Kimmeridge Clay Formation of Streatham, Cambridgeshire, England" (Knutsen 2012, p. 270) [Early Kimmeridgian] | |||||
Lithology and environment
| Primary lithology: | lithified claystone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Abundance in sediment: | rare |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Collection size: | 1 individuals | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | Mr W.W. Woolfe & Mr B. Woolfe | Collection dates: | 1952-1956 |
Metadata
| Also known as: | Streatham | ||
| Database number: | 114894 | ||
| Authorizer: | R. Benson | Enterer: | R. Benson |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-08-25 20:04:23 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-08-25 20:04:23 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 37217. | L. B. Tarlo. 1959. Stretosaurus gen. nov., a giant pliosaur form the Kimmeridge Clay. Palaeontology 2(1):39-55 [R. Benson/R. Benson] |
Secondary references:
| 46939 | R. B. J. Benson, M. Evans, A. S. Smith, J. Sassoon, S. Moore-Faye, H. F. Ketchum, and R. Forrest. 2013. A giant pliosaurid skull from the Late Jurassic of England. PLoS ONE 8(5):e65989 [R. Benson/R. Benson/R. Benson] | |
| 43302 | E. M. Knutsen. 2012. A taxonomic revision of the genus Pliosaurus (Owen, 1841a) Owen, 1841b. Norwegian Journal of Geology 92:259-276 [R. Benson/R. Benson] |