THE LIAS AMMONITES. 



The outline of the above agrees in some respects with my section, but the naming of 

 the beds and the absence of their fauna, renders it valueless for the purpose of correla- 

 tion with the many other exposures of strata of the same age throughout Europe. 



The cliff should be reached about ebb-tide, as this will afford ample time for 

 examining all the beds as they rise from the shore line. The Ustkeria-hed^ must be 

 diligently searched for its special Crustacea. The Contorta shales and Cardium shales 

 contain an immense number of small shells, much compressed; and it will be necessary 

 for the student to carry with him a thin solution of gum arable and a hair pencil, so as 

 to give the fossiliferous slabs he extracts a coating of the solution whilst the shells are in 

 situ, and allow them to dry in the sunshine, otherwise he will fail to preserve the 

 treasures he gathers from these brittle paper -like strata. 



Detailed Section of Garden Cliff. 



No. 



LiTHOLOGY. 



Thick- 

 ness. 



Paleontology. 



1 



2 

 3 

 4 

 5 



6 



7 



8 



9 

 10 

 11 



12 

 13 



14 

 15 



16 

 17 



Brown or grey hard limestone with 

 numerous shells 



Thin hrown shales containing Pishes' 

 scales and teeth 



ft. 

 

 2 

 

 3 

 3 

 1 



7 



2 



2 



7 

 1 

 

 



1 



1 

 1 

 



1 



in. 

 4 

 

 4 

 6 

 

 











6 





 

 6 



1 



6 





 10 

 4 



4 



Modiola minima, Ostrea liassica, Protocardium, 

 Pleuromya. 



Fish remains, scales, and teeth ; genera indeter- 

 minable. 



Monotis decussata, Anatina preecursor, Myacites 

 musculoides, Qervillia prtscursor. 



Fishes' teeth and scales are seen on the split 

 laminae. 



Fossils in the limestone bands, but indeter- 

 minable as to species. 



JEstheria minuta, var. Brodieana, Jones, found in 

 nests in the hard limestone. 



Avicula contorta, Pectsn Valoniensis, Cardium 

 Bhceticum, Axinus cloacina, Lima preecursor, 

 Neoschizodus posterns, PleuropTiorus, Mya- 

 cites, Modiola, and Gasteropods indeterminable. 



Pecten Valoniensis forms an upper Pecten-bed. 

 Pullastra arenicola, Axiniis, Cardium Bhcsti- 

 cum, and Pecten Vol. Lower Pec<e»-bed. 



Avicula contorta compressed with Axinus, Car- 

 dium, Pecten, &c. 



Cardium Bhceticum in great numbers, Pecten, 

 Valoniensis, Axinus, Ophiolepis Damesii. 



Acrodus minimus, Nemacanthus filifer, Hybodus 

 minor, Gyrolepis tenuistriatus, Saurichthys 

 apicalis, Sargodon tomicus, Avicula, Axinus, 

 Pullastra. 



Non-fossiliferous, 



Avicula contorta, Cardium Rhceticum, Pullasti'a 

 arenicola, Modiola minima. Fishes' teeth. 



Non-fossiliferons. 



Acrodics, Sargodon, Gyrolepis, Avicula contorta, 



Pullastra arenicola. 

 Teeth, scales, coprolites, &c., at base. 

 Unfossiliferous. 



Cream-coloured fissile argillaceous lime- 

 stone, the Monotis-bed 



Indurated brown marls, clayey and 

 shaly in parts 



Grey fissile marls, with thin pyritic 

 limestone bands 



Light grey, nodular, marly limestone, 

 Estheria-bed 



Chocolate-coloured shales, laminated 

 and friahle, containing many seams of 

 compressed shells, which must be 

 examined when exposed 



Dark shaly clay with many seams of 

 compressed shells, and two indurated 

 bands containing Pectens 



Dark grey contorta shales with seams 

 of shells 



Dark brown paper-like Cardium-shales 

 with many seams of shells 



5owe-ie</calcareo-siliceous pyritic band 

 forming an osseous breccia in parts 

 with a clay bed between 



Black shales 



Dark grey, micaceous, ripple-marked 

 sandstone, forming ledges ; the Pul- 

 lasira bed 



Dark shales 



Lower Bone bed, dark and gritty sand- 

 stone, with teeth 



Dark laminated shales 



Grey marls of Keuper 



1 Rupert Jones' ' Monogr. Foss. Eslheriae,' Pal. Soc. vol. for year 1860, p. 70, &c. 



