Blue Anchor to Lilstock Coast SSSI ( to ) is a 742.8

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 ...

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 o ...

between

Blue Anchor Blue Anchor is a seaside village, in the parish of Old Cleeve, close to Carhampton in the Somerset West and Taunton district of Somerset, England. The village takes its name from a 17th-century inn; the bay, Blue Anchor Bay, was previously kno ...

and Lilstock in

Somerset ( en, All The People of Somerset) , locator_map = , coordinates = , region = South West England , established_date = Ancient , established_by = , preceded_by = , origin = , lord_lieutenant_office =Lord Lieutenant of Somerset , lord_ ...

, notified in 1971. It provides an outstanding series of sections through the

Early Jurassic The Early Jurassic Epoch (geology), Epoch (in chronostratigraphy corresponding to the Lower Jurassic series (stratigraphy), Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-J ...

Lower Lias The Lias Group or Lias is a lithostratigraphic unit (a sequence of rock strata) found in a large area of western Europe, including the British Isles, the North Sea, the Low Countries and the north of Germany. It consists of marine limestones, ...

, spanning the Hettangian and

Pliensbachian The Pliensbachian is an age (geology), age of the geologic timescale and stage (stratigraphy), stage in the stratigraphic column. It is part of the Early Jurassic, Early or Lower Jurassic epoch (geology), Epoch or series (stratigraphy), Series an ...

Stages and named the "Lilstock Formation". This sequence and the good Rhaetian succession beneath are repeatedly affected by faulting, making it of interest to

geologists A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...

and

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

hunters. It also displays coastal geomorphology which demonstrates a particularly well-developed series of intertidal shore platforms varying in width from about 200-600m. The cliff and beach are rich in reptile remains, including complete skeletons. Lilstock also yields

ammonites Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttl ...

, shells and fish remains. A unique specimen of an ichthyosaur, named ''Excalibosaurus costini'' McGowan, 1986 in which the lower jaw is shorter than the upper was found in the

Lower Jurassic The Early Jurassic Epoch (in chronostratigraphy corresponding to the Lower Jurassic Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-Jurassic extinction event, 201.3 Ma&nb ...

Sinemurian Stage In the geologic timescale, the Sinemurian is an age and stage in the Early or Lower Jurassic Epoch or Series. It spans the time between 199.3 ± 2 Ma and 190.8 ± 1.5 Ma (million years ago). The Sinemurian is preceded by the Hettangian and ...

, Lower Lias beds on the foreshore at Lilstock and is now in the

Bristol City Museum and Art Gallery Bristol Museum & Art Gallery is a large museum and art gallery in Bristol, England. The museum is situated in Clifton, about from the city centre. As part of Bristol Culture it is run by the Bristol City Council with no entrance fee. It holds ...

The

Triassic The Triassic ( ) is a geologic period and system (stratigraphy), system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Year#Abbreviations yr and ya, Mya), to the beginning of the Jurassic Period 201.36 ...

cliffs have geological interest for the variety of fossils. The coloured alabaster found in the cliffs gave rise to the name of the colour "Watchet Blue". It is on the West Somerset Coast Path.

References

External links

Natural England website (SSSI Information links) {{Authority control Sites of Special Scientific Interest in Somerset Sites of Special Scientific Interest notified in 1971 Geology of Somerset