L. Richardson — Rhcetic Rocks at Charfield. 533 



. ft. ins. 



5a. Shales, dark, marly . . about 1 Shell-debris. 

 5b. Limestone, hard, dark-grey, arena- \ ^ „ I Gyrolepis Alberti (scale), 

 ceous, to 3 inches . . . . \ \ Pecten valoniensis. 



6. Shales, thickly laminated . about 1 6 Cardium cloacinum, Proto- 



cardium rluBticum, Schi- 

 zodus Ewaldi, Avicula 

 contorta, Modiola sp. 



7. Limestone, dark - grey, almost i' Sohizodus, Protocardmm 

 rubbly, earthy, 2 to 3 inches . 3 | rhceticum, Piacimopsis 



( alpina. 



8. / Shales, black, somewhat firm, seen 6 



[.Gap.-] 



9. < Shales, black, thinly laminated, seen 2 ScJiizodus Utoaldi (ruve). 



10. I Shales, black, laminated, with 



11. \ yellow streaks 19 



12. Shales, dark-grey, non-laminated, ( ^^^^^^'r'i p,^^*^ , Schizodus 

 micaceous . . . . . . ! q io\ffaldz;Pleurophorusanp^ 



I lafus, Protocardmm rhceti- 

 \ cum, Avicula contorta. 



13. Sandstone, usually very pyritic . 1 Scales and teeth of <Ti/rofej9Js 



Alberti, Plesiosaiirus (small 

 tooth), Acrodus miniimis ? 



14. Shales, black, often sandy ... 2 



15. Sandstone, light-grey, calcareous, \ ^ „ / Gyrolepis Alberti (scales), 

 sometimes pyritic, 2 to 4 inches ) ( casts of Schizodus (?). 



Keuper. I. ' Tea-green Marls,' seen ... 1 8 



The beds from the 'Tea-green Marls' to No. 9 can be studied 

 in the side of a small pond. Unfortunately it is impossible to 

 obtain the exact thickness of each bed, and the upper portion 

 of the section is considerably obscured. The basement bed is 

 a conspicuous stratum of grey, calcareous sandstone, sometimes 

 pyritic, but with few vertebrate-remains. It forms the bed of 

 the brook at the fence near the little pond. Slightly higher up- 

 stream a thin layer of veiy pyritic rock can be observed, and if 

 a piece be removed will be found to be separated by a deposit 

 of shale two inches thick from the basal Rhaetic bed. This pyritic 

 sandstone (13) occasionally occurs in two layers, the lower being 

 of ' bone-bed ' nature. When conjoined, the inferior portion is full 

 of fish-remains. Immediately above are dark-grey, non-laminated 

 shales, crowded with specimens of Schizodus Ewaldi, especially at 

 the base. The Lower Pecfeji-bed (7) crops out in the stream, 

 but contains few fossils. The precise thickness of the shale-deposit 

 intervening between this bed and the next limestone band is 

 uncertain. Higher up-stream this second limestone band crops 

 out, and the shale immediately below is excessively fossiliferous, 

 the specimens being very well preserved. Cardium cloacinum is 

 especially abundant. Bed 56, however, is intermittent, occurring 

 sometimes in nodule-shaped masses. 



In order to study the lower portion of the Upper Rheetic Stage 

 it is necessary to proceed down-stream again, when a steep portion 

 of the bank will be noticed on the left-hand side. At the top of this 

 bank, under the roots of a tree, is the Estheria -hQ^. The phyllopod 

 and the plant-remains, however, are rare : as is usually the case. 



