i=! 



Q' 





« 



64 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



The above lie unconforraably on— LocaUties where well exposed. 



ri f 5. Thin-bedded sandy shales, full ) Banks of the Onny at Cheney - 



of Trinucleus concentricus. ) Longville ; near Acton Scott. 



4. Thick and thin- bedded brownish ") p. t,. -r, , tttl-^ 



J ,1 1 . tv, T f Onny Kiverj Jiushmoor; Whit- 



and yellow sandstones, with cai- y x- -^ i , \ . a ff.r> y 



careous courses, highly fossili- > + ° tt n r a ji ^^ ^^^' 

 p ' t> J 1 ton ; Hoilv larm, boudlev. 



lerous. -^ ' J ' J 



3. Thick freestone beds of a browTi ') 



colour, often largely streaked C Longlane; E.of Horderley; Soud- 



with green and purple (Horderley \ ley ; Enchmarsh ; Chatwall. 



flags). 

 2. Yellow coarse sandstones (in -. 



someplacesaconglomerate which / Corston Heath; Horderley; Hoar 



is rarely fossiliferous), with a cal- r Edge ; Acton-Bumell Park ; 



careous band at Horderley, Har- j Cound Moor ; near Hamage. 



nage Park, &c. ^ 



1. Sandy and argillaceous sbales, f tt ri oi.- x 



■', n -i-F I, 4- ^ C Harnage; Cressage; Shmeton; 



m parts lossiliierous, but gene- \ -^j °-n- i a- r t • u^ 

 . rally ban-en. ^ Mary Dmgle, Is . of Leighton. 



1. Shales of Cressage, Leighton, ^c. — These beds, which occupy 

 the low ground north of Acton-Burnell Park and Cressage Park, 

 are well seen at the villages of Harnage near Cound, and at Shineton. 

 They are generally fine and thin- bedded argillaceous shales, without 

 fossils, readily separating into layers, and as such may be seen at a 

 mill one mile north of Leighton Church, and also on the brook east 

 of Belswardins Hall, Cressage, where a trial for coal has been made, 

 and where they dip at an angle of 60°, and are covered unconformably 

 by the Pentamerus limestone. Occasionally they are more arena- 

 ceous, and contain Lingulse, Trilobites, Encrinites, &c., as at Shine- 

 ton, Harnage, and Cound. The following fossils have been observed *, 

 but the specimens are not fully examined : — 



Olenus sp. Shineton. 



Trinucleus concentricus, *****. 



Asaphus sp., *. Shineton. 



Agnostus. Shineton. 



Beyrichia complicata, and a minute C3i;here. 



Orthis alternata, ***. Harnage. 



testudinaria. 



Nucula, Orthonota, Theca, Lingula. Hamage. 

 Bellerophon nodosus (see Appendix). Harnage. 

 Graptolites, Fenestella, Ptilotlictja. Harnage. 



The occurrence of the Trinucleus, a true Asaphus, and Agnostus 

 would be quite sufficient to mark these as Lower Silurian, if the cha- 

 racteristic Bala species of Beijrichia, Orthis, and Bellerojihon were 

 absent. These beds are distinctly succeeded at Harnage Park and 

 near Cound l)y the — 



2. Hoar Edge grits. — Thick sandstones, often coarse-grained, 

 and containing rounded pebbles of quartz, — some of a very large size, 

 and small pebbles of red jasper and green earth. They are well 



* The relative abuiulance of the species is indicated by asterisks. 



