Registers of macrofossils arranged by 1" (one inch ro the mile) or 1:50 000 scale English geological sheets. Each register is numbered 1-359 and each sheet has one or more volumes. Within each volume, data is arranged by collectors symbol. This is the system used in the Leeds office (the London office had a different system- see MACROLONDON). It is this system that is currently in use.

4 volumes of the donations by Boswell of onshore British macrofossils. A number of reports in the PDL series were written in the 1960s.

Registers dating from the 1950s listing some of the macrofossil collections held in the Geological Survey of Ireland between 1868 and 1875. They are numbered sequentially, but as they are a selection only, there are some gaps in the numbers. Numbers included are: I1-4893; K1253-4937;L319-3247;N961-3066;O4521-5000; P1-4393; R1-1270;S1978-2099; T1-500 and U1-2113.

5 volumes of macrofossils illustrated in the Quaterly Journal Of The Geological Society are given identifications and locality details together with the bibliographic reference. A few are foreign, but most are from the UK. The first date given is QJGS volume 12 for 1856. Last date mentioned is 1912. Numbers used: GS1-7886; GSA1-5000; GSB1-5000; GSC1-5000;GSD1-6415. The data set is closed, but occasional modification to the registers are infrequently made to update or correct certain specimens.

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.

11 volumes of macrofossil and microfossil collections donated to IGS/BGS. Arranged sequentially in three series: LZ 1-10000 LZA 1-10000 LZB 1-10000 LZC 1-553

Register of samples collected from the Carboniferous of Northern Ireland mainly for macrofossils, but including a few microfossils (which have since been re-registered into the SAL or MPA collections). Specimen number, locality and geological horizon given together with some identifications. Each register is for a geological sheet.

Register of samples collected from the Carboniferous of southern Ireland together with the Hodson collection. Specimen number, locality and geological horizon given together with some identifications.

Registers of thin sections of macrofossils originally held in the Leeds Office. The locality and geological horizon is also given. PC1-462 have been used.

2 volumes of macrofossil collections donated to IGS/BGS. Arranged sequentially FOR.L1-5362. Identifications, geographical information and geological information given.