﻿72 MR. S. S. BUCKMAN ON CERTAIK [Feb. I9IO, 



Section II. — Burton Bradstock. 



[The section is generalized : it is based mainly on information obtained 

 from the blocks under the cliff : but there is some variation in the thicknesses 

 of these from different parts. Information as to fossil contents is also 

 embodied from other places, the cliff between West Bay and Freshwater, 

 Larkfield Quarry, the road-cutting, the quarry north of Bredy River, and 

 even from the walls. The lithic differences of the beds are so distinctive and 

 are so soon recognized, that fossils from isolated blocks can be placed without 

 difficulty. The quarrymen know them quite well.] 



fusca Lower Fullers' Earth Clay. At 



Larkfield Quarry, Burton Brad- 

 stock, many Belemnites can be ob- 

 tained from this. At Eype Cliff 



it has produced Oppelia fusca and 



Perisphinctes. 

 The Scroff. At the base of the 



clay and at the very top of the 



stone-beds there is a brown, more 



or less indurated marl, sometimes 



considerably iron-stained. It is 



3 to 4 inches thick, and contains 



Oppelia fusca and Perisphinctes. 



Canaliculate Belemnites of the 



B.-parallelus type and Zigzagiceras 



cf. subprocerum are in it, partly 



attached to the bed below. 



Thickness in feet inches, 

 zigzag (1) The 1st Bed. — The top 6 inches 



of this bed (Hudleston's P. 3) are 



a somewhat hard, bluish, earthy 



limestone. Zigzagiceras zigzag, Z. 



subprocerum, and others ; Mor- 



phoceras polymorphum, M. p>seudo- 



anceps ; Parkinsonice of the P. cle- 



pressa and P.-lavis type ; Oppelia 



sp. ; Collyrites ovalis 6 



schlcenbachi... (2a) Rest of bed bluish yellow to 

 yellowish, fossils sparingly found; 

 but there are Parkinsonice like 

 those of the bed below 2 1 



(2b) The 2nd Bed.— Mostly a yellow- 

 ish limestone with much brown, 

 earthy matter, the Ammonites 

 often in rotten condition. Parkin- 

 sonian which have squared inflated 

 whorls, coarse ribs, and conspicuous 

 peripheral interruption like P. 

 schlmibachi, Schlippe ; Terebratula 

 phillipsi, T. spharoidalis, Rhyncho- 

 nella parvula, Acanthothyris spi- 

 nosjz, A. panacanthina, Aulacothyris 

 carinata ; Collyrites ringens, C 

 ovalis, Holectypus hemispharicus, 

 Stomeckin us bigranularis 2 6 4 » 



iruellii (3) The 3rd Bed of the quarrvmen, 



with their Shell Bed at the base. 

 To be divided : — Main part Terebra- 

 tula Bed or truellii bed. Fairly hard 

 grey limestone, softer towards the 



