﻿Vol. 64.1 BALA AND LLANDOVERY EOCKS OF GLrN CEIRIOG. 



567 



above, and due east of, the China- 



occurs in an old trial-working 

 clay Quarry: — 



LeptcBna rhomboidalis, Wilck. 

 Orthis calligramma, Dalm. 

 Orthis elegantula, Dalm. 

 Orthis testudinaria, Dalm. 

 Flectamhonites sericea, Sow. 

 Ctenodonta varicosa, Salt. 

 Cxicullella of. planulata, Conr. 

 Bellerophon hilohatus (f) Sow. 

 Murchisonia gyrogonia, M'Coy. 



Finally, a band of sandstone presenting much the same characters 

 crosses the Oswestry Eoad about 450 yards north of the sharp 

 bend at Ty-nant. The exposure is too poor to allow of much 

 collecting, and the only fossils that we obtained were : — 



Murchisonia cf. turrita, Portl. 

 Baphistoma cBquale, Salt. 

 Tentaculites anglicus, Salt. 

 Orthoceras politum, M'Coy. 

 Tetradella complicata, Salt. 

 Colymene senaria (Conrad) Salt. 

 Phacops apiculatus. Salt. 

 TmiucleiLS sp. 



Orthis elegantula, Dalm. 

 Lingula ovata (f) M'Ooy. 

 Flatyschisma (1) sp. 



Baphistoma cequale (?) Salt. 

 Tetradella complicata, Salt, 

 Homalonotus sp. 



The following is a complete list of the fossils that we have 

 identified from the Bryn Beds : — 



Found also in 

 beds below. 





1^ 



X 



1 

 y 



; X 



X 

 X 



Monticulipora fibrosa, Goldf. (c) 



XX X X XX XXXXXX XXXX 



Monticulipora lens, M'Coy 



Ptilodictya acuta, Hall 



Tentaculites anqlicus. Salt, (c) 



Ortonia sp. 



Leptana rhomhoidalis. Wilck 



Lingula ovata, M'Coy. 



Orthis calligramma, Dalm 



Orthis elegantula, Dalm. (c) 





Orthis porcata, M'Coy 





Orthis testudinaria, T>a\vci 





Orthis turgida, M'Coy. (c). 



Platystrophia hiforata, Schl. (c) 



X 



Plectamhonites sericea, Sow. (c) 



i 



X 



1 



1 



X 

 X 



Bhynchonella decemplicata, Dav. 

 Bafinesquina expansa, Sow 



Bajinesquina ungula, M'Coy (c). 

 Bafinesquina deltoidea, var. undata, M'Coy. 

 Bafinesquina deltoidea, var. simulans, M'Coy. 



Strophomena antiquata, Sow. (c) 



Triplesia spiriferoides, M'Coy (c). 



Bellerophon hilohatus, Sow. 

 Euom2jhalus prcenu/itius (?) Phil 



Holopea concinna, M'Coy 



Murchisonia gyrogonia, M'Ooy. 



