Tiny pollen grains: first evidence of Saururaceae from the Late Cretaceous of western North America

by Friðgeir Grímsson, Guido W. Grimm, Reinhard Zetter
Published 2017-06-01

Eocene Loranthaceae pollen pushes back divergence ages for major splits in the family

by Friðgeir Grímsson, Paschalia Kapli, Christa-Charlotte Hofmann, Reinhard Zetter, Guido W. Grimm
Published 2017-06-01

Hagenia from the early Miocene of Ethiopia: Evidence for possible niche evolution?

by Friðgeir Grímsson, Silvia Ulrich, Mario Coiro, Shirley A. Graham, Bonnie F. Jacobs, Ellen D. Currano, Alexandros Xafis, Reinhard Zetter
Published 2021-05-01