﻿534 ME. r. E. C. EEED AND PEOF. S. H. EETNOLDS ON [N"oY. 1908, 



Ludlow 

 Series. 



mytilimeris, Pterincea sp., Rhynchonella sp., and a fish-spine (?) in 

 a white limestone-matrix from this locality. If the fossil last 

 mentioned is really a fish-spine, it probably points to the presence 

 of Ludlow rocks. 



We have been unable to find any sign of exposures in the eastern 

 part of the copse. 



III. Geneeal Succession of the Silijeian Eocks. 



Although the general succession may be fairly easily ascertained, 

 it is impossible in many cases to give any approximation to the 

 thickness of the several bands. 



The following is the succession : — 



Old Eed Sandstone. Feet. 



( Fossils found in a trench to the south of Little Daniel's 

 Wood are of Ludlow character, and the presence of 

 these rocks is possibly indicated by fossils from Horse- 



■{ shoe Farm and Tortworth Great Copse. But the 

 typical LudJow fauna of Herefordshire and Shropshire 

 has not been met with, and the series is clearly much 



1^ attenuated. 



( 5. Fissile red and yellow sandstones with gritty and 

 calcareous bands, seen at Horseshoe Hill and south 

 of Little Daniel's Wood ; thickness doubtful. 



4. Upper limestor,e-band variable in character, seen 

 at Whitfield, near Erook Farm, and at Little Daniel's 

 Wood; thickness perhaps 25 



3. Variable non-calcareous beds showing no permanent 

 ■{ exposures ; thickness at Falfield, according to Phillips, 



about 500 



2. Highly-fossiliferous red clay or shale with rubbly 

 limestone and celestine-bands, seen at the Whitfield 



quarries about 12 (seen) 



1. Lower limestone-band — a thickly-bedded, some- 

 what sandy limestone, seen at the Whitfield quarries 

 1^ and at Charfield Grreen ; thickness about 30 



[Thickness of the Wenlock Series = perhaps about 625 feet.] 



( 6. Grit overlying the ashy limestone of Middlemill, 

 and shales with grit and highly-fossiliierous calcareous 

 sandstone of Daniel's Wood and Eastwood ; thickness 

 not ascertainable. 



5. Highly-fossiliferous ashy limestone of Charfield 

 Green and Middlemill ; thickness at Charfield Green 



Wenlock 

 Series. 



3* 



Llandovery 

 Series. 



4. Upper trap -band seen at Charfield Green, Avening 

 Green, Daniel's Wood, Middlemill, and Woodford 

 Green ; thickness at Charfield Green about 60 



3. Sandy limestone and calcareous sandstone and grit, 

 as a rule crowded with fossils ; thickness both at Char- 

 field Green and at Damery about 500 



2. Lower trap-band seen at Charfield Green, Damerj, 

 and Mickle Wood ; thickness at Damery about 185 



1. Micaceous sandstone with Lingida Symondsi seen 

 l^in Damery quarry; base not exposed. 



Phillips gives 1200 feet as an estimate of the thickness of the Llan- 

 dovery Series at Charfield Green. We should estimate the total thickness 

 of the Llandovery Series (including the trap-bands) at about 800 to 850 feet. 

 The total visible thickness of the Silurian System in the Tortworth Inlier 

 may be taken at about 1500 feet. 



