﻿520 ME. F. E. C. EEED A>'D PROF. S. H. EET>-OLDS ox [XoV. IpcS, 



The commonest fossils are StHcklandinia lirata and Favosltes 

 gothlandica, the latter occurring in such large and continuous 

 masses as to form practically a small reef. 



Although nothing is seen resting upon the ashy limestone, there 

 is an exposure (in the western part of the quarry) of shales with 

 grit -bands dipping at 40° to 50° north-westwards, the strike being 

 sach as to bring the strata directly over the ashy limestone ; and that 

 they rest on it is further shown by the fact that, although not seen 

 in place, many blocks of ashy limestone occur on the quarry-floor 

 just below the shale-and-grit exposure, and excavation would no 

 doubt expose the rock in situ. Some of the grit-bands are crowded 

 with Favosites Eisingeri, while Palceocyclus jprceacutus and Atrypa 

 reticularis are common as well : Ccelospira hemisplierica, Siroj>homena 

 compressa^ Favosites Forhesi (?), and Lindstrcemia bina were also 

 found. The abundance of Favosites Hisingeri and Palceocyclus 

 prceacutus strongly recalls the type of Llandovery which overlies 

 the upper trap-band at Daniel's Wood and the same deposit at 

 Eastwood ; while the resemblance, both lithological and faunistic, 

 between the ashy limestones at Middlemill and Charfield Green 

 becomes more apparent, the more the deposits are studied and the 

 fossils are collected. The great abundance of Favosites gothlandica 

 at each locality is most characteristic, while Strickland inia lirata 

 and Beliolites parasitica are common at both places. These con- 

 siderations lead irresistibly to the conclusion that the two deposits 

 are on the same horizon, and that consequently the Middlemill trap 

 is not, as was formerly supposed, a continuation of the lower trap- 

 band as seen at Damery and Micklewood, but is the upper trap-band 

 brought in a second time by faulting or folding. In support of this 

 view is the fact that two trenches dug in the field to the south-east 

 of the pond at Woodford Green, and directly in the run of the trap 

 (supposing that it, as was formerly believed, extended across from 

 Micklewood to Woodford Green), proved to be in Llandover}- 

 sandstone. 



A further point supporting the view that the Middlemill, Wood- 

 ford, and Woodford- Green trap-masses belong to the upper band, 

 lies in the fact that quartz-xenocrj'sts are common at these localities 

 as they are in the upper trap-band at Daniel's Wood and near 

 Fowler's-Court Farm, Charfield, while they have not been noted in 

 any rocks undoubtedly belonging to the lower trap-band. 



Llandovery sandstone is exposed on the banks immediately south- 

 west of Middlemill Quarry, where it probably dips under the trap. 

 The following fossils were found here : — 



Lindstrcemia hina. StricMandinia lens. 



Lindstrxmict subduplicaia, , StricMandinia lirata, 



var. crenulata. I Ehynchonella serrata. 



Triplecia insularis(l). I Ehynchonella &^. 



StrophomeJia arenacea. Fkacops sp. 



Orthis ehgantula. \ Encrinurus puiictatics. 



This assemblage is quite comparable with that found in the strata 

 between the two trap-bands at Damery. jS'o exposures were 



