1994

Underwood, Charlie J. and Bottrell, S.H. (1994) Diagenetic controls on the pyritization of graptolites. Geological Magazine 131 (3), pp. 315-327. ISSN 0016-7568.

1998

Poulton, S.W. and Bottrell, S.H. and Underwood, Charlie J. (1998) Porewater sulphur geochemistry and fossil preservation during phosphate diagenesis in a Lower Cretaceous shelf mudstone. Sedimentology 45 (5), pp. 875-888. ISSN 0037-0746.