Microfossils collected from the British Continental shelf are included in this data set. Microfossils are held on single and multiple celled slides and glass slide mounts. Sample no, borehole details, and locality is given in related registers. Symbols used: CSA1-2205 Continental Shelf Unit North; CSB1-6047 Continental Shelf Unit South; CSC1-7134 Offshore microfossils; CSD1-507 Offshore microfossils; CSE1-6826 Offshore microfossils. Very occasional macrofossils are included. This dataset includes the raw data, the added value sets, i.e. identification logging sheets (CONTSHELFVA) and related interpretative reports (TECHREPORTS) are held elsewhere.