L. Richardson — Inferior- Oolite Fossils from DouUing. 511 



Freestone.^ The Upper Coral-Beds succeed the latter at the quarry 

 near the Church, and then — as is known from the evidence of many 

 sections— follows the Doulting Stone. But in the neighbourhood of 

 Doulting the Doulting Stone succeeds the Conglomerate-Bed at once, 

 without the intervention of any Dundry Freestone or Upper Coral- 

 Bed : there is a non-sequence. The Doulting Stone includes the 

 celebrated Doulting Freestone — a stone well-known in building-circles. 

 On the whole the limestones of the Doul ting-Stone subdivision are of 

 fairly uniform aspect and not conspicuously fossiliferous. Fossils can, 

 however, be obtained by diligent search, and it is worthy of record 

 that near the top is a circular variety of Pecten demissus, Phillips, 

 which occurs on precisely the same stratigraphical horizon in the local 

 Clt/peus-Grit of the Horton-Rectory Quarry in the South Cotteswolds, 

 to which the Doulting Stone is the equivalent. The Anahacia- 

 Limestones are typically very distinct from the underlying Doulting 

 Stone and overlying Rubbly-Beds. The Rubbly-Beds are the most 

 fossiliferous of the Inferior-Oolite strata in the neighbourhood. 

 Sometimes they are not so definitely marked off from the Anahacia- 

 Limestones, and when such is the case it is rather difficult, if a fossil 

 is not found in situ, to say from which it came. If there is any 

 matrix adhering it will generally be found that on fossils from the 

 Anahacia-lAmestontis the matrix is of a white colour, while on those 

 from the Eubbly-Beds it is distinctly browner, and there are few 

 oolite-granules. 



During a number of visits to Doulting, made since my main paper 

 was published, particular attention was paid to the occurrence of 

 ammonites in the upper portion of the Doulting Beds and Fullers' 

 Earth, with a view to the more precise dating of these deposits. 



There are now about 12 feet of Fullers' Earth exposed at the 

 Farmcombe Quarry, and the little oyster identified with Ostrea Knorri, 

 Yoltz, occurs in the lowest portion immediately above the "limestone, 

 rubbly, white, mixed with clay ; variable, say 1 foot " (Quart. Journ. 

 Greol. Soc, 1907, vol. Ixiii, p. 395). From this bed has been obtained 

 a fragment of an ammonite that is probably Zigzagiceras clausiprocerum 

 (S. S. Buckman) ; and either from the same bed or the top of the 

 Eubbly-Beds a fragment of "■ "i Parkinsonia Icevis (Quenstedt)." So 

 the basement-portion of the Fullers' Earth may be of zigzag hemera, 

 and the A'jtom'-Clays of approximately the same date. 



The Aulacothyris doulting ensis, Richardson, MS., is closely alKed 

 to the form from the " Marl-Bed " ( OarantiancB) of Stoford, Somerset, 

 which has been recorded as Aulacothyris ^^ Meriani, var." - It does 

 not appear desirable to describe either this or the new Velopecten in 

 this paper, but to await one devoted entirely to the description of 

 some new Inferior- Oolite fossils. 



^ The statement in my main paper (p. 420) — "but how thick it was, or 

 whether it rests directly upon the ' grit,' or was separated therefrom by the Upper 

 Coral-Bed . . . " — was inadvertently transcribed from notes made before I had 

 satisfied myself about the correct position of the Upper Coral-Bed and should be 

 erased. 



* Quart. Journ. Geol. Soc, 1893, vol. xlix, p. 484. 



