PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



[Feb, 29, 



Table showing the localities of the Fishes of the Bone-bed of England 

 and the Continent. 



Genus and species. 



-730 



& a 



o a 

 WO 



Bone-bed at 

 Coombe Hill. 



C to 

 o 3 

 W<5 



Bone-bed at 

 Axmouth. 



St. Cassian 

 beds. 





Acroclus minimus, Ag 



* 



* 



* 



* 



* 



* 



Nemacanthus filifer, Ag. . . . 



Hybodus minor, Ag 



Gyrolepis Albertii, Ag 



emarginatus, Ag 







trapezoides, Ag 



Saurichthys apicalis, Ag. . . . 





[Some of the species of Fish are also represented by teeth and 

 scales in other beds of the Avicula contorta series, as at Wainlode.] 



The Mollnscan remains obtained from the Avicida contorta series, 

 including the Bone-bed, are : — 



Pullastra arenicola, Strickland. 

 Cardium Ehseticum, Merian. 

 Area, n. sp. 

 Anomya, n. sp. 

 Modiola minima, Sow. 

 Modiola minuta, Goldf. 



Myacites musculoides (?), Schlotheim. 



Myacites, n. sp. 



Monotis deenssata, Goldf uss. 



Avicula contorta, Portlock. 



Pecten Valoniensis, Befr. 



Ostrea liassica, Strickland. 



The little bivalvecl Crustacean Estheria minuta, Bronn, and Copro- 

 lites of Fishes and Beptiles, complete the list of the organic remains 

 of this zone. 



Equivalent of the Bone-bed in the North of Ireland. — General 

 Portlock* found in the North of Ireland, at Lisnagrib and Deny- 

 more, " alternating beds of red and variegated marl, and of red and 

 whitish sandstones, all more or less, but most of them highly, calca- 

 reous," of which he says — ■ 



" Towards the summit the light-coloured marly and highly cal- 

 careous grit prevails, and is succeeded by shales and calca- 

 reous grits, which form the transition-member between the New 

 Bed Sandstone and the Lias, and therefore, in part at least, corre- 

 spond, as their fossils do, to the Muschelkalk." And again, " Pass- 

 ing upwards from the sandstone, greyish and partly indurated marls 



* Eeport on the Geology of Londonderry, &c. pp. 105 & 107 (1843). 



