part 2] INFERIOR OOLTTE OF THE CREWKERNE DISTRICT. 168 



In the lane (24) near Allowenshay yellow sands and sandburrs, 

 full of Serpula tricarinata auctt., are exposed. From a hard bed 

 at the top I obtained a number of specimens of a small form of 

 RhyncJionella cynocepkala auctt., and from one of the sandburrs 

 Dumortieo-ia arenaria S. Buckman indicating moorei hemera. 



There are excellent sections in the Sands in the lanes at 

 Dinnington (21 ) and Hinton St. George (26). 



Manor-House Quarry, North Perrott. — This quarry is 

 the one mentioned by H. B. Woodward as situated ' by New Hall, 

 west of North Perrott Church.' l 



Concerning the quarry, Woodward wrote that it shows 



'about 18 feet of false-bedded shell-limestones, interbedded with buff sands 

 and sandy limestones, that . . . occur locally in the upper part of the Midford 

 Sand in this district, and are well represented at Ham Hill. The shell frag- 

 ments are mostly indeterminable as to species, consisting of Ostrea, Pert en, 

 and Avicula ; but Mr. Ehodes obtained Pecten demissus and Belemnites 

 voltzi(?j: (Loc.cit.) 



A photograph of this section is reproduced in PL XIV. 



Quarry at North Perrott Manor House. 



Thickness infer! incites. 

 Scissi 1. Bluish -grey and pale-yellow, very fine-grained, 



micaceous, sandy clay ; Belemn ites sp., Aulaco- 

 thyris blak&i (Walker), RhyncJionella cyno- 

 cephala auctt., Terebratula cf. T.-hares- 

 fieldensis Group : about 4 



? Scissi 2. Limestone, fairly -regular band of whitish- 

 looking sandy limestone, Ostrea sp G 



Opalin iforw is 3. Yellow, micaceous, sandy clay, weathering to a 

 pale grey, with rubbly limestone and rolled and 

 Aalensis. often phosphatized fossils in the lower portion ; 

 Pleydellia aalensis (Zieten) at the very base; 

 Belemnites irregularis Schlotheim (rolled), 

 Ostrea sp. (some are of an Ostrea-hnurri 

 Voltz aspect, others more gryphoid). Aulaco- 

 thyris blalcei (Walker), Zeilleria whaddonensis 

 S. Buckman, RhyncJionella cynocephala auctt., 

 Eh. pentaptycta S. Buckman : about 1 



1 Perrott Stone ' 4. Limestone, brown, practically made up of 

 (probably shell-fragments, shaly in places, very hard, 



moorei). blue - centred and crystalline in others, ir- 



regularly bedded ; Lytoceras sp. (large and 



not infrequent) : about 18 



5. Sand-rock, often soft and very sandy : seen... 2 



The 'Perrott Stone' has been used considerably in the village 

 for building-purposes, and has a very pleasing warm-brown colour. 



Frome, Somerset (Proc. .Somerset Arch. & Nat. Hist. Soc. vol. xiii, 18C7, 

 p. 157); but Davidson slates that he was unable to check Moore's identi- 

 fication, because the specimens (Moore's) had been mislaid (' British Fossil 

 Brachiopoda ' Monogr. Palseont. Soc. vol. iv, pt. ii. no. 1, pp. 117-18). 



1 'The Jurassic Rocks of Britain, vol. iv — Ihe Lower Oolitic Rocks of 

 England (Yorkshire excepted) ' Mem. Geol. Surv. 1894. p. 71. This section 

 was visited by some members of the Geologists' Association on April 14th, 

 1914 (Proc. Geol. Assoc, vol. xxvi, 1915, pp. 74-76). It is now within the 

 gardens of the Manor House, which were extended in 1914. 



Q. J. G. S. No. 294. x 



