332 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [JuilG 15, 



and bluish, and sometimes shaly, from 10 to 12 ft.* ; in the marlv 

 portion the fossils are very abmidant, as 



Cardium. Lima iuterstincta. 



Modiola imbricata. Ostrea Bathonica. 



Trigonia Moretonis. Perna quadrata. 



Cyprina. Natica. 



Unicardium varicosum (Sow. sp.). Turbo tuberculatus. 



Pholadomya lirata. Pliasianella cincta. 



Terebratula maxillata. Nautilus. 



Pecteu annulatus. Acrosalenia hemicidaroides. 

 Lima cardioides. 



3. Green and irregularly sandy clays, fossiliferous, with 



layers of Necsra and Pholadomya abundant 5 ft. 



4. Marly, sandy and slaty rock, with. Avicula and other shells 2 



5. Dark green and bituminous, shelly clays, with Cytherea, 



Necera, and Cyrena 4 



Bituminous band 0^ 



6. Compact sandy and marly rock full of Cardium, Cy- 



therea, Necera 2 



Variegated clays, bituminous, &c. ; these beds contain 

 a zone of dark clays, with Cyrena Cunninghami, C. 

 (sp. 1), and a species of Mactra 4 



3. Thracia, abundant. 4. Avicula and Modiola, 6. Cardium. 



Modiola. much compressed. Modiola. 



Fecten lens, rare. 5. Neasra. Neasra. 



Neaera Ibbetsoni. Anoniia. Anomia. 



Pholadomya acuticosta. Mactra. Pinna. 



Lingula. Cerithium. Ostrea. 



Terebratula obsoleta. Neaera. Astarte cuneata. 



Anomia. Cyprina. 

 Gryphaea nana. 



Some fine saurian remains, obtained from this cutting, were pre- 

 sented by Mr. Reynolds to the Museum of Practical Geology. Among 

 these remains, which have been determined by Prof. Owen, were 

 the tympanic bone of Cetiosaurns longus, the metatarsal bone of Cet. 

 brevis, a fibula, and a fragment of a large vertebra. 



The upper part of the Banthorpe Cutting (next in order) consists of 

 about 7 to 9 feet of cornbrash rock, containing the characteristic fos- 

 sils, and overlying a dark tenacious clay, sometimes laminated with 

 shelly layers, below which, and forming the base of the line, is 7 feet 

 of compact shelly bluish rock, occasionally sandy and becoming 

 shaley, full o{ Ostrea, Gervillia, and Avicula. 



In the Casewick Cutting the cornbrash, which is a grey, slightly 

 compact and crystalline, shelly, and thin-bedded rock, occurs through- 

 out the base of the cutting ; its fossil contents are — 



Pholadomya. Pecten demissus. 



Panopaea calceiformis, Phil. sp. lens. 



Modiola bipartita. Terebratula Bentleyi. 



Gervillia aviculoides.^'o?^. obovata. 



Gonioraya litterata, Sow. sp. Berenicea diluviana. 



Lima rigida, Sou\ Serpula, two species. 



Ostrea Marshii, Sow. Portion of a jaw of Chimaera. 



* The more solid portions of this bed have been recognized by Mr. Piestwich 

 as being of frequent occurrence in the boulder- clay of Norfolk and Suffolk. 



