FOSSILS OF NORTH BUCKS AND ADJACENT COUNTIES. 



485 



Name. 



Cyprina (?) 

 Natica 



Placunopsis socialis, Lye. and Mot. 

 Nerinaea Goodhallii, Sow. 

 Opis sinualis, Desk. 

 Astarte aliena, Phil. 

 Terebratula obovata, Sow. 



„ maxillata, Sow. 



„ digona, Sow. 



Isocardia concentrica, Sow. 



,, minima, Sow. ... 

 Trigonia impressa, Sow. ... 

 costata, Park. 



Locality. 



Gayhurst, &o. 



Gry hurst. 



Gayhurst. &c. 



Gayhurst. 



Gayhurst. 



Gayhurst. 



Gayhurst. 



Gayhurst. 



Yardley, Hastings. 



Gayhurst. 



Gayhurst. 



Wolverton, &c. 



Gayhurst. 



Next we find the Forest- marble, consisting of hard blue limestone 

 and clay, which, as it possesses land-plants, is of more interest than 

 the Cornbrash, which is much the same as elsewhere. The Forest- 

 marble does not in the least resemble the Stonesfield slate, as that of 

 Gloucestershire does, in lithological character, not being flaggy or 

 splitting into thin plates ; but is a massive and very hard limestone, 

 and very intractable. It is well developed around Wolverton 

 station and town ; and the following fossils have been obtained 

 from it : — 



Name. 



Pycnodus parvus, Ag. 



„ Bucklandii, Ag. 

 Strophodus tenuis, Ag. 

 Terebratula maxillata, Sow. 



„ intermedia, Sow. 



Rhynchonella tretrahedra, Sow. ... 

 Astarte 



Trigonia Moretonis, Lye. and Mot. 

 Modiola imbricata, Sow. ... 

 Myacites calceiformis, Phil. 



„ recurva, Phil. ... 

 Cardium Buckmanii, Lyc. and Mot. 

 Natica 



Ostrsea gregaria, Sow. 

 Nucleolites solodurinus, Ag. 

 Spines of Echinites 

 Thuytes cupressiformis, BTong. ... 



Thuytes 



Wood and cones ... 



Locality. 



Rowley pits. 

 Rowley pits. 

 Rowley pits. 

 Long-Street. 

 Wolverton station. 



Rowley. 

 Rowley. 

 Long-Street. 

 Rowley pits. 

 Wolverton. 

 Wolverton. 

 Haversham. 

 Plentiful. 



Yardley, Hastings. 



Rowley. 



Wolverton. 



Wolverton. 



Newport-Pagnel. 



The coniferous plants were found between Wolverton station and 

 Laughton, on the cutting of the London and North Western Rail- 

 way, or rather in the stone blasted for the purpose of building a 



