Burton Bradstock

Locals wait months for ‘Burton to fall’, and when she does, her rich ammonite beds yield superb finds, with bags to bring home. Cliff falls occur every two to three years, and fossils can then be collected from the rocks on the foreshore or from any of the scree slopes. As well as ammonites, many other fossils can be found, including echinoids, shark fins, bivalves and brachiopods.

DIRECTIONS

♦ From Burton Bradstock village, access from the eastern end at Hive Beach, parking at the National Trust car park (Postcode: DT6 4RF) . Hive Beach café provides food, drinks and toilet facilities. Alternatively on foot from the village, turn west at the Dove Inn, following the footpath, keeping east of the River Bride to the sea.
♦ From here, we recommend either walking along the top of the cliffs and then dropping down the opposite side, or from Hive Beach, walking westwards along the beach at low tide, as this is where the fossils are found. Few fossils are found at the eastern end of Burton Cliff, as there is no Inferior Oolite present and rocks are predominately Bridport Sands.
♦ Ref: 50.69608°N, 2.72253°W

PROFILE INFO

FIND FREQUENCY: ♦♦ to ♦♦♦♦♦ – If you are prepared to take heavy lump hammers and split blocks, or if you are lucky enough to arrive shortly after a fresh fall, there is plenty to be found. Finds include superb ammonites, belemnites, shells and echinoids. Without fresh falls though, finds can be limited.
CHILDREN: ♦♦ – Burton Bradstock is not suitable for families, as Burton Cliff can be dangerous and people have been killed here by cliff falls.
ACCESS: ♦♦♦ – Access to the beach at Burton Bradstock is quite easy, with a car park nearby. However, you do have to walk to the western end, which can be very difficult on return, if you have a bag crammed full of fossils.
TYPE: –  This is a foreshore and cliff location, so fossils can be found in both. However, fossils need to be worked for by breaking blocks of fallen Inferior Oolite found on the foreshore. Do not hammer into the cliffs, as they can be very unstable and this is also an SSSI site.

FOSSIL HUNTING

This site is part of the Jurassic World Heritage Coastline. This is a SSSI, so no hammering into the cliff is permitted. In addition, the highly unstable cliffs are very unpredictable and can fall at anytime. You won’t find much in the Bridport Sands and can only really find fossils in the oolitic blocks, which come from the very top of the cliff.

Burton Bradstock is rich in ammonites and there are many different species to be found, nearly all from the Inferior Oolite. These include: Parkinsonia, Schloenbachi Schlippe, Garantiana garantiana, Strigoceras truellei, Strenoceras niortensis, Teloceras blagdeni, Otoites sauzei, Shirbuirnia stephani, Hyperlioceras discites, Ludwigella concava, Tmetoceras scissum, Brasilia bradfordensi and Ludwigia murchisonae. Bones can also be found, including sharks’ spines.

homeoplanulites
Homeoplanulites

After a significant cliff fall, which are not commonplace, blocks of Inferior Oolite limestone may come down from the uppermost layer of Burton Cliff to beach level., in which it is possible to find not just ammonites but also sponges, echinoids (Clypeus), brachiopods and bivalves. This particularly fossiliferous bed in Burton Cliff is from the higher part of the Inferior Oolite (from the Upper Bajocian).

leptosphinctes
Leptosphinctes

Burton Bradstock is one of those locations where you have to be in the right place, at the right time. Cliff falls are rare and a fall at the western end from the top of the Inferior Oolite is even rarer. They usually occur every two to three years and, when they do, you can guarantee that the locals will be down like a shot! However, although most of the prize finds are usually snapped up quickly, a decent sized cliff fall can provide weeks and even months of decent collecting for smaller specimens or, with some hard work, even larger ones.

megalytoceras
Megalytoceras

Unless you are local or visit often, you are probably going to have to work hard to make finds. Walk westwards along the beach until you can see lumps of very hard limestone from cliff falls. Note that any fall of just sandy rock is probably not going to produce anything worthwhile, as it will be from the mostly unfossiliferous Bridport Sands Formation, which makes up the majority of the cliff. Similarly, there is no Inferior Oolite on the cliff top section at the eastern end. Where ammonites are seen, these can usually be extracted using a heavy lump hammer, although some hard work splitting the rock is necessary to yield finds, some of which can be superb.

strigoceras
Strigoceras

When a cliff fall does occur, the larger ammonites often get buried in the Bridport Sands. Therefore, if you will need to move rubble around and turn rocks over. Ammonites can sometimes be found loose, without too much trouble.

Although it is tempting to climb the falls, these cliffs are very unstable after recent collapses, and even small pieces of rock falling from a height can cause serious injury. You should search around the base of the fall and not the base of the cliff. If you can, carry any rocks you are working on well away from the fall site and as far as possible away from the base of the cliff.

With a little patience and by splitting rocks, you are almost certain to find at least some good fossils. If the rock you are working on appears unproductive, try another. The ammonites are in zones, so once you find a fossiliferous rock, it’s likely to be full of other fossils.

parkinsonia
Parkinsonia
GEOLOGY

Burton Cliff is similar to East Cliff at West Bay (see separate section on this website). It is composed mostly of Upper Bridport Sands Formation. Most of this is Toarcian (Lower Jurassic) but the top 2 metres are Aalenian (Middle Jurassic).

Above the Bridport Sands is about 7 metres of highly condensed Inferior Oolite limestone. The Infereior oolite is Bajocian but itslower bed, the Scissum Bed, is Aalenian. Above the Inferior Oolite is a bed of grey clay, being the basal bed of the Frome Clay (previously known as Fuller’s Earth)

As at East Cliff (West Bay), the vertical and straight Bridport Sands Formation, displays beds of friable sandstone and hard carbonate cemented sandstone. Here, exposures at the base are fossiliferous in places. The Bridport Sands show evidence of trace fossils, particularly Thalassinoides and U-shaped worm burrows, indicating very shallow water conditions at the time of deposition. Other fossils are present in the Bridport Sand but they are certainly not abundant and ammonites are hard to find.

The overlying Inferior Oolite is not safely accessible in Burton Cliff, but large, fallen blocks are sometimes present on the foreshore, where they have collapsed from the cliff top above. In these, almost the full thickness of the unit can be studied. Ammonites are quite numerous in the condensed sequence of the Inferior Oolite at Burton Bradstock. They are not usually easy to find, though because of limited amounts of the limestone at beach level and because collectors have already taken specimens!  They are certainly not as well-preserved as the ammonites of the Liassic clays.

Burton Cliff is being undercut, as waves more frequently abrade the foot of the cliff, due to the diminishing width of the beach shingle below.  As a result, rock falls are becoming more commonplace and fatalities have occurred here.

burton-bradstock

DSCF0010
Bridport Sands Formation
SAFETY

Common sense when collecting at all locations should be used and prior knowledge of tide times is essential. Care should be taken of tides at all locations. The well-known exposures of fossiliferous limestone at the foot of the cliffs are of course the result of cliff falls and people have been killed in the past at this site. While major falls are not common, special care must be taken to watch for areas from where loose material may fall. Wet or frosty weather conditions can cause cliff falls. Some other places, such as the low cliffs east of Burton Bradstock and some parts of Portland and Chesil Beach can be visited more safely instead. At all times, you should wear safety helmets and watch out for any dangerous activity on the cliff face. Since this is at the western part of Chesil Beach, there is some risk of being cut off by the tide or swept into the sea in very stormy weather conditions.

EQUIPMENT

Burton Bradstock is a location where you have to work hard for your finds, so take a good, strong heavy hammer and safety goggles to crack open the oolitic rocks. Remember to take plenty of paper to wrap any specimens.

ACCESS RIGHTS

This site is an SSSI and forms part of the UNESCO World Heritage Jurassic Coast. This means you can visit the site, but hammering the bedrock is not permitted. For full information about the reasons for the status of the site and restrictions please download the PDF from Natural England – SSSI Information – West Dorset

It is important to follow our ‘Code of Conduct’ when collecting fossils or visiting any site. Please also read our ‘Terms and Conditions

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