The Westbury Formation is a geological
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondar ...
in England, one of the
Penarth Group
The Penarth Group is a Rhaetian age (Triassic) lithostratigraphic group (a sequence of rock strata) which is widespread in Britain. It is named from the seaside town of Penarth near Cardiff in south Wales where strata of this age are exposed ...
. It dates back to the
Rhaetian.
[Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 521–525. .] The formation is named after the village of
Westbury-on-Severn
Westbury-on-Severn is a rural village in England that is the centre of the large, rural parish, also called Westbury-on-Severn.
Location
The village is situated on the A48 road (between Minsterworth and Newnham on Severn) and bounded by the R ...
in
Gloucestershire
Gloucestershire ( abbreviated Glos) is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn and the entire Forest of Dean.
The county town is the city of Gl ...
. The remains of giant
shastasaurids are known from the formation.
Vertebrate fauna
*''
Avalonianus
''Avalonianus'' is a highly dubious and possibly invalid genus of archosaur from the Late Triassic of England. It was first described in 1898 by Harry Seeley with the name ''Avalonia'',H. G. Seeley. 1898. On large terrestrial saurians from the R ...
''
*''
Picrodon''
*
Shastasauridae
Shastasauridae is an extinct family of Triassic ichthyosaurs that includes the genera ''Shastasaurus'', ''Shonisaurus'' and '' Himalayasaurus''. Many other Triassic ichthyosaurs have been assigned to Shastasauridae in the past, but recent phylog ...
indet.
See also
*
List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of stratigraphic units with dinosaur body fossils
** List of stratigraphic units with ...
References
{{Reflist
Triassic System of Europe
Rhaetian Stage
Geologic formations of England