Overview 

The Three Tiers Bed (averaging 10m) appears near to sea level at Broom Cliff, well to the east of Charmouth, but it tends to be hidden behind a covering of more recent slipped material that has from the top of the cliff. This bed is formed from courses of hard micaceous silty siltstone. Fallen blocks litter the beach below Golden Cap. The bottom Tier is the most fossiliferous.


Fossils 

The lower of the tiers (Bed 6 by Howarth), has the common ammonite Amaltheus stokesi along with Tragophylloceras and the rare Lytoceras, as well as gastropods.

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Ammonite Tragophylloceras 

Beds and fossils 


Bed Name Geology Fossils
- Top Tier 2'6" -
- - 7'6" shale -
- Middle Tier 2'3" -
- - 14' shale -
6
(by Howarth)
Bottom Tier 2'3" Tragophylloceras loscombi
Amaltheus sp


Bed photographs

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Taken from sea level at the end of Wear Cliffs towards the eastern side of Golden Cap. The prominent limestone band seen half way up the cliff face, is the upper bed of the Three Tiers Bed. At sea level, the Belemnite Marls are nearly all covered by water at high tide. The Green Ammonite Bed form the beds making up Wear Cliffs running eastwards along the coast at this point. 

Other Three Tiers Bed references

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