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), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is a ...

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 of ...

near the village of

Clandown Clandown is a village lying north of Radstock in Somerset, England, just off the Fosseway. It is north of Radstock. The nearby Bowlditch Quarry is a 0.25 hectare geological Site of Special Scientific Interest. History Clandown was formerly a mi ...

Bath and North East Somerset Bath and North East Somerset (B&NES) is a unitary authority district in England. Bath and North East Somerset Council was created on 1 April 1996 following the abolition of the county of Avon. It is part of the ceremonial county of Somerset. Th ...

, 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 of the Triassic Period (in geochronology) or the uppermost stage of the Triassic System (in chronostratigraphy). It was preceded by the Norian and succeeded by the Hettangian (the lowermost stage or earliest age ...

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 190.8 ± 1.5 Ma and 182.7 ± 1.5 Ma (million years ago). The Plien ...

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 Bio ...

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