Westbury Formation
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The Westbury Formation is a geological formation in England, one of the Penarth Group. It dates back to the Rhaetian. The formation is named after the village of Westbury-on-Severn in Gloucestershire. The remains of a giant shastasaurid and dinosaurs are known from the formation.
Vertebrate fauna
| Vertebrates reported from the Westbury Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Avalonianus | A. sanfordi | Wedmore Hill | "Several now lost teeth." | |||
| Camelotia | C. borealis | Westbury-on-Severn | "Vertebrae, pubis, ischium, femur, tibia, phalanges, adult." | Camelotia | ||
| Ichthyotitan | I. severnensis | Blue Anchor and Lilstock | Two partial surangulars | Possibly one of the largest marine reptiles | ||
| Picrodon | P. herveyi | Wedmore Hill | "Tooth." | |||
| Shastasauridae | Indeterminate | Aust | "Three partial specimens." | |||
| Pachystropheus | Several partial postcranial skeletons | A small thalattosaurian marine reptile, youngest known thalattosaur | ||||
| Lissodus | L. minimus | A hybodont shark | ||||
| Saurichthys | A pike or gar-like predatory fish | |||||
| Sargodon | A dapediiform fish | |||||
| Gyrolepis | A ray-finned fish | |||||
| Birgeria | A large predatory fish | |||||
| Ceratodus | A lungfish |