VOL. xvii. (I) INFERIOR OOLITE— SOUTH COTTESWOLDS 91 



A little under a mile south-by-east of Dyrham, and east 

 of Dyrham Wood, is the Fullers'-Earth section which was 

 noticed above (page 78). 



The quarries by the road-side in Dyrham Camp (near the 

 loth milestone), are in Doulting Stone ; but the same subdivi- 

 sion is better seen in a quarry between " The Springs " 

 (the source of the R. Boyd) and Dodington Ash, in the 

 neighbourhood of which the sequence of beds is as follows : 



Sequence between Dodington Ash and " The Springs." 



Pond north-east of the dump of trees on the 

 south side of the road. 



Thickness in feet inches 

 Fullers' Earth, i. Clay. 

 I & II. Rubbly-Beds and top-portion of the Anabacia- 

 Limestones, not exposed. 



" The Springs " Quarry. 



II. Anabacia-'Lime- 2. Limestones, oolitic: at the top single 

 stones examples of Syncyclonema demissitm 



(Phillips), Terebratula globata, auctt. 

 nonSow., and Rhynchonella hamp- 

 enensis, S. Buckman, seen : • • 5 o 



III. Doulting Stone 3. Limestones, shelly. The bottom-por- 

 tion of this bed is rather rubbly, 

 and much more shelly than the 

 strata below; Trichites (fragments), 

 Ctenostreon pectiniforme (Schlo- 

 theim), Ostrea, Terebratula globata 

 auctt. non Sow., and Rhynchonella 

 hampenensis, S. Buckman . . . . 2 o 



4. Limestones, dense, white, non-oolitic, 

 sparry : shell - fragments, and a 

 Rhynchonella near the top : seen . . 6 6 

 Rubble on the bank on the opposite side of the road yielded 

 fossils indicative of deposits of Truellei-Garantiana 

 hemerce. 



IV. & VI. Upper 5. Ragstone, shelly: Acanthothyris spin- 



Coral-Bed osa (Schlotheim), Terebratula globata, 



and auctt. non Sow., Zeilleria Waltoni 



Upper (Dav.), Rhynchonella hampenensis, 



Trigonia- S. Buckman, Parkinsonia (frag- 



Grit ment), Isastreea Richardsoni, E & H. 



(large mass), Opis similis (Sow.) 



Clypeus Hugi, Agassiz, and ? Micro- 



solena excelsa, E. & H. 



Non-sequence. Bajocian and Aalenian wanting. 



In the deep and usually dry watercourse. 

 Sodbury Sands 6. Sands and sandstones : numerous 



ammonites — Haugia cf. incequa, S. 

 Buckman, H. fascigera, S. Buckman, 

 Haugia (nearest to H. fascigera), 

 Grammoceras toarciense (d'Orbigny) 

 and Phlyseogrammoceras dispansum 

 (Lycett). 



