PRESTWICH—CRAG-BEDS OF SUFFOLK AND NORFOLK.
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| Fig. 4.—General Section of the Coralline Crag. | ||
|
h. Sand and comminuted shells. | Sudbourne. Gedgrave. |
| g. A series of beds consisting almost entirely of comminuted shells and remains of Bryozoa, forming a soft building-stone. False stratification and oblique bedding are its constant characters. | Sutton. Sudbourne. Gedgrave. Iken. Aldbro'. | |
| f. Sand with numerous entire small shells and seams of comminuted shells. | Sutton. Iken. Sudbourne. Gomer. | |
| e. Sands with numerous Bryozoa, often in the original position of growth, and some small shells and Echini. | Sutton. Broom Hill. | |
| d. Comminuted shells, large entire or double shells, and bands of limestone in the upper part. | Sutton. Broom Hill. Sudbourne. Iken. Tattingstone. | |
| c. Marly beds with numerous well-preserved and double shells, often in the position in which they lived. | Sutton. Ramsholt. | |
| b. Comminuted shells, Cetacean remains, Bryozoa. | Sutton. | |
| a. Phosphatic nodules and mammalian remains. | Sutton. | |
