Thomas Marcussen is currently a researcher at University of Oslo working on the Norwegian node of the Earth Biogenome Project, EBP-Nor. T.M. obtained his Ph.D. degree in systematic botany in 2003 at University of Oslo, and has worked as a postdoc/researcher at the Norwegian University of Life Sciences, Uppsala University, University of Gothenburg. The research interests of T.M. cover biosystematics, phylogenetics, in particular homoploid and alloploid reticulate evolution, in organisms such as Viola, Geranium, and grasses.