530 PROCEEDINGS OP THE GEOLOGICAL SOCIETY. 



first seen. Owing to the character of the matrix many are in bad 

 condition, and, from the outer shell-structnre having perished, difficult 

 to recognize specifically. In consequence of this, some of Mr. 

 Tawney's species represent known Liassic forms, whilst others have 

 been previously described from the Lower Lias, or " Infralias " 

 beds of the Continent *. 



In addition to the 15 species of corals described by Dr. Duncan, 7 

 of which are special to it, I have recognized 85 other species in 

 the Sutton Stone, which, with the 2 hitherto obtained only in the 

 fissures below, make a list of 52 species. 



List of Organic Remains from the Sutton Stone. 



Ammonites angulatus. 



Cerithium, sp. 



Neritopsis exigua. 



Phasianella (Pteroceras) dubia, Terq. 



usta, Terq. 



Patella Dunkeri, Terq. 



ornata, Moore. 



Turbo Juliani, Terq. 



Trochus. 



Cardinia Moreana, Martin (C. ingens, Taw.). 



, sp. 



Cardita tetragona, Terq. (Astarte Dmicani, Taw.). 



rkomboidalis, Taw. 



Cypricardia Winwoodii, Moore. 

 Astarte cingulata, Terq. 

 Lithodomus, casts. 

 Mytilus, sp., cast. 

 Modiola, sp. 



Pinna insignis, Taw. (P. semistriata, Terq.). 



Lima gigantea, Sow. (L. exaltata, Terq. ; L. compressa, Terq. ; L. Fis- 

 cheri, Terq.). 



Dunravenensis, Taw. 



duplicata (L. Hettangiensis, Terq.). 



tiiberculata, Terq. 



dentata, Terq. (L. subduphcata, Taw. ; L. planicostata, Taw.). 



Pecten Pollux, BWrb. (P. Suttonensis, Taw.). 



Ethoridgii, Taw. 



Ostrea intusstriata, Linn. (Spondylus liassicus, Terq.). 



Plicatula acuminata, Terq. <§• Piette. 



Ostrea liassica (O. arcuata, LamJc. ; O. anomala, Terq.). 



arietis, Munst. (multicostata, Terq.). 



irregxilaris (Anomia socialis. Taw.). 



Grypha2a incm^va (Ostrea laj vis, Taw.). 



Serpulaj. Entomostraca. Acrodus-tooth, derived. Fish-palate, fragment. 



* Immediately after the reading of Mr. Tawney's paper I communicated my 



views on the age of the Sutton and Southerndown series to my geological friends 

 in London^ and I then informed Mr. Bristow that they were of Liassic age. He 

 has since surveyed them and made sections for the Geological Survey. In a 

 short paper read with my own and published in the last Number of the Society's 

 Journal, I was pleased to find him in entire accordance with myself respecting 

 their age. At this time Mr. Tate had an opportunity of inspecting the large 

 collection I forwarded with the Sutton and Brocastle Corals to Dr. Duncan — his 

 views then being that they belonged to the Ammooiites-planorbis series ; and I 

 informed him they belonged to still higher horizons. Since my paper was read, 

 he has given one on the " Fossiliferous Development of the Ammonites-angida- 

 fus zone," in which there will be seen a repetition of many of the points in my 

 paper, and a general agreement with its views. 



