Westbury Formation
| Westbury Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Blue Anchor Formation |
| Thickness | 5-10 m |
| Lithology | |
| Primary | Mudstone, Shale |
| Other | Limestone, Sandstone |
| Location | |
| Region | Europe |
| Country |  UK |
| Type section | |
| Named for | Westbury-on-Severn |
The Westbury Formation is a geological
formation in England, one of the Penarth Group. It dates back to the Rhaetian.[1] The formation is named after the village of Westbury-on-Severn in Gloucestershire.[2] The remains of a giant shastasaurid and dinosaurs are known from the formation.[3][4]
Vertebrate fauna
| Vertebrates reported from the Westbury Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Avalonianus[5] | A. sanfordi[5] | Wedmore Hill[5] | "Several now lost teeth."[5] | |||
|
C. borealis[1] |
Westbury-on-Severn[6] |
"Vertebrae, pubis, ischium, femur, tibia, phalanges, adult."[7] |
 | |||
| Ichthyotitan[4] | I. severnensis[4] | Blue Anchor and Lilstock[4] | Two partial surangulars[3] | Possibly one of the largest marine reptiles | ||
| Picrodon[5] | P. herveyi[5] | Wedmore Hill[5] | "Tooth."[5] | |||
| Shastasauridae[3] | Indeterminate[3] | Aust[3] | "Three partial specimens."[3] | |||
See also
- List of dinosaur-bearing rock formations
References
- ^ ISBN 0-520-24209-2.
- ^ The BGS Lexicon of Named Rock Units โ Result Details: Westbury Formation
- ^ PMID 29630618.
- ^ PMC 11023487.
- ^ a b c d e f g h H. G. Seeley. (1898). On large terrestrial saurians from the Rhaetic Beds of Wedmore Hill, described as Avalonia sanfordi and Picrodon herveyi. Geological Magazine, decade 4 5:1-6
- ^ Galton, P. M. (1985). Notes on the Melanorosauridae, a family of large prosauropod dinosaurs (Saurischia: Sauropodomorpha). Geobios, 18(5), 671-676.
- ^ "Table 12.1," in Weishampel, et al. (2004). Page 234.