330 GEOLOGY OF THE BEISTOL COAL-FIELD. 



44. — Rhynchonella led. — This is a good fossiliferous bed, behind 

 the Colonnade, and crops out again near the south buttress of the 

 Suspension Eridge. The specimens of Proclucta and JEuomphalus are 

 larger here than in any other part- 



Mhynchonella pugmis ; Proclucta gig aniea ; EuompJialus'tuberculatus : 

 Sangumohtes angustata]; Mgacites tumulus. 



45. — Foraminifera led. — Although five good beds are known, yet 

 this one is perhaps the best. It is oolitic in its structure, the 

 granules being white, in a reddish brown matrix. It is impossible 

 to cut a slide for the microscope without having three or four species 

 of foraminifera on it. Almost every granule has for its nucleus a 

 foraminifer or minute shell. Among others have been noticed the 

 following genera — 



Trochamminay Textularia, Climacammina, Stacheia, Endothyra, 

 Lituola, Archcedisciis, Valvulina, Nodosinella. 



46. — Is a bed with abundance of Terelratula Jiastata. 



47. — Stutchluryi led. This is a very thick bed of brown 

 limestone, full of larged sized corals, sufficiently perfect for the 

 observation of all their anatomical details. 



CyathophyUum Stutchluryi{'Edv^^d.), r6gium\{'Fhiil.); Campophyllum 

 Murchisoni (^dwd,) \ Lonsdaleia floriformis (Edwd.) ; Lithostroiion 

 Martini (Edwd.), carnea (Edwd.) ; McCoyanum (Edwd.) 



48. — Convoluta led is a reddish sandy limestone, very full of 

 fossils, among which are Spirifera convoluta or rliomloidalis (Phill.) ; 

 Cyrtina septosa (Dav.) ; Froducta Martini {^o\y.), longispinosa (Sow.). 

 Finna^ sp ? ; Fecten, sp?; Cochliodus contortus (Ag.) 



The five last beds are hidden by the houses, so that the 

 examination must either be conducted by going through the gardens, 

 or by finding tliem on the opposite side of the river. 



On these lie the upper limestone shales, which are extremely 

 sandy in their character, giving rise to the name of " Upper Grits." 

 They are about 400 feet in thickness. They are not so rich in 

 fossils as the other parts of the Clifton section, although 52 species 

 have been noted. 



[3046,] — This is the last of the Upper Shales, just below the 



