Else Marie Friis

Potomacanthus lobatus gen. et sp. nov., a new flower of probable Lauraceae from the Early Cretaceous (Early to Middle Albian) of eastern North America.

Marco Stampanoni, M. Stampanoni, E. M. Friis, 2007, American journal of botany.

Early Flowers and Angiosperm Evolution

Peter R. Crane, E. M. Friis, K. R. Pedersen, 2011 .

Molecular phylogenetic dating of asterid flowering plants shows early Cretaceous diversification.

B. Bremer, K. Bremer, E. M. Friis, 2004, Systematic biology.

Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales

Marco Stampanoni, Philip C. J. Donoghue, Peter R. Crane, 2007, Nature.

Early angiosperm diversification : The diversity of pollen associated with angiosperm reproductive structures in early Cretaceous floras from Portugal

Peter R. Crane, E. M. Friis, K. R. Pedersen, 1999 .

Seed Size, Fruit Size, and Dispersal Systems in Angiosperms from the Early Cretaceous to the Late Tertiary

O. Eriksson, E. M. Friis, Else Marie Friis, 2000, The American Naturalist.

A Reevaluation of Seed Plant Phylogeny

Kevin C. Nixon, William L. Crepet, K. Nixon, 1994 .

Seed Plant Relationships and the Systematic Position of Gnetales Based on Nuclear and Chloroplast DNA: Conflicting Data, Rooting Problems, and the Monophyly of Conifers

M. Källersjö, E. M. Friis, Else Marie Friis, 2002, International Journal of Plant Sciences.