part 2] [NFERIOR OOLITE OF THE CREWKERNE DISTRICT. 1 ") 1 



diseitie heinera. 1 Since 191-1 1 have collected two Rhynchonellids, 



probably of unnamed species, which render it fairly evident that it 

 is of bradfordensis heniera. 2 



Evidence of the occurrence in this district of rock belonging to 

 •one or more hemerae between murchisoncB and qarantianas is to be 

 had from two sources. Hudleston makes mention of a massive 

 shell-bed with large conchifera and keeled ammonites, 2 feet 1 inches 

 thick, at Haselbury (29) above the Zeilleria-anglica Horizon 

 (murchisonee)? Mr. S. S. Buckman informs me (in lift.) that 

 -* one would expect b?'adfordensis, but I cannot conlirm this." 



In the Moore Collection at Bath are a number of ammonites 

 and other fossils, attached to tablets labelled by Moore, recorded as 

 having come from Dinnington, a village 3 miles from Crewkerne 

 in a north-westerly direction. Through the kindness of the Kev. 

 H. H. Wimvood, F.Gr.S., I was enabled to send a selection of the 

 ammonites to Mr. Buckman. AVhen returning the specimens he 

 wrote : 



4 Two of them are obviously from Bundry Hill, near Bristol] and in- 

 validate Moore"s evidence. The others 



Brasilina crinalis S. Buckman. bradfordensis hemera ; Brausina cf. 



contorta (S. Buckman), diseitx hemera; Erycites aff. tulcus (Gregorio), 



bradfordensis hemera ; Graphoceras decorum S. Buckman, disc it ie 



hemera; Hammatoceras cf. lorteti Vacek (mom Dumortier sp.), murchi- 



sonae or bradfordensis hemera ; H. cf. sieboldi Vacek (non Oppel sp.), 



about bradfordensis-concavi hemera] 



are from a matrix unfamiliar to me. but the matrix — and, in some cases, 



the test — shows much likeness to the Stoke-Knap conditions : by this I mean 



that they indicate an area more linked up with Stoke Knap than with 



Bradford Abbas. 



'Dinnington may be the locality for J. Sowerby's type of Ammonites con- 

 •cavus [which Sowerby states came from] '"the neighbourhood of Ilminster," 4 

 and Davidson figures " Terebratula peroral is"-- a Concava~He& fossil from 

 *' Dunnington" 5 (Dinnington).' 



I have not discovered any section in the neighbourhood of 

 Dinnington that displays the serpienee from the JSLurchisonce to 

 the Top Beds. 6 There is no reason, however, why BradforJensis-, 

 Concava-, and Discifes-Beds should not occur in the district: 

 indeed the matrix of the specimens of Brdsilina crinalis and 

 Graphoceras decorum mentioned above reminds one of the ironshot 

 rock attached to the top of the JUkrchisonce Beds at the Misterton 

 Limeworks and neighbouring sections. 



The surface of the ironshot rock seen at the Misterton Lime- 



1 Proc. Geol. Assoc, vol. xxvi (1915) p. 75. 



2 See records of sections at Ten- Acres Field Quarry (p. 158) and the Lime- 

 works. Misterton (p. 154). 



:i 'The Inferior Oolite Gasteropoda' Monogr. Palrcont. Soc. pt. i (1887) 

 p. 41. 



1 • Mineral Conchology ' vol. i (1815) p. 214 <t pi. xciv. 



5 'British Fossil Brachiopoda : Monogr. Palaeont. Soc. vol. i, pt. iii (1852) 

 p. 51 & pi. x, fig. 4. 



,; By the term 'Top Beds' is meant the rock of garantianse-zigzag hemerae 

 inclusive). 



