Richard A. Reyment holds the degrees of Filosofie Doktor (Stockholm) and D. Sc. (Melbourne). He is a fellow of the Royal Swedish Academy of Sciences, Stockholm, professor emeritus of Uppsala University and currently guest-researcher at the Museum of Natural History, Stockholm. During his employment in the British Colonial Service he was mainly engaged in establishing the geology and palaeontology of the sedimentary basins of Nigeria and part of Cameroun. He is the founding father of the International Association for Mathematical Geology and member of the Comité de Parrainage of the European Union of Geosciences.

His research interests have led to studies of random events in time (including volcanic outbreaks and earth tremors), the analysis of shape variation and applications of multivariate statistical analysis in geology and biology. Additionally, he has published several articles on quantitative linguistics (Tsiganology), and the genetic history of the Moors of the Iberian Peninsula,  serological statistics, and the history of geology.

His current scientific activities are concerned with variability in invertebrates (geometric morphometrics), multivariate analysis of serological data,  the analysis of recurrent morphotypes in ammonites, compositional multivariate statistical analysis in biology and geology and the application of the theory of point processes to volcanic activity.