The obvious reason for writing an Editorial at the start of this particular issue is to celebrate 150 years since the first publication of Geological Magazine. This is a long and continuous record of service to the scientific community and contribution to the geosciences. All those people who have been associated with the publication of the journal can be proud of it. I would especially like to acknowledge the efforts of the production teams over the years: behind the academic work of authors, referees and the editors stands a dedicated group of publishing staff, who ensure that the high publication standards of the journal are maintained. Thanks are also due to the authors who have contributed to papers in Geological Magazine to date. It is a daunting prospect to think of exactly how many different scientists have co-authored papers in the journal since 1864, and what combinations of evolution and revolution our science has seen in that time.