Bowlditch Quarry () is a 0.25

hectare The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, square metres (), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. ...

geological Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle ...

near the village of Clandown,

Bath and North East Somerset Bath and North East Somerset (B&NES) is a Unitary authorities of England, unitary authority district in Somerset, South West England. Bath and North East Somerset Council was created on 1 April 1996 following the abolition of the county of Avon. ...

, notified in 1952. The site provides a remarkable attenuated and broken succession stretching from the top of the

Rhaetian The Rhaetian is the latest age (geology), age of the Triassic period (geology), Period (in geochronology) or the uppermost stage (stratigraphy), stage of the Triassic system (stratigraphy), System (in chronostratigraphy). It was preceded by the N ...

to the lowest

Pliensbachian The Pliensbachian is an age of the geologic timescale and stage in the stratigraphic column. It is part of the Early or Lower Jurassic Epoch or Series and spans the time between 192.9 ±0.3 Ma and 184.2 ±0.3 Ma (million years ago). The Plie ...

periods. This Lias section provides a good example of

biostratigraphic Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.Hine, Robert. "Biostratigraphy." ''Oxford Reference: Dictionary of Biology ...

principles.English Nature citation sheet for the site
(accessed 9 July 2006)

References

Sites of Special Scientific Interest in Avon Sites of Special Scientific Interest notified in 1952 Quarries in Somerset {{Somerset-geo-stub