O’Donnell et al. 2013. Phylogenetic analyses of RPB1 and RPB2 support a middle Cretaceous origin for a clade comprising all agriculturally and medically important fusaria. Fungal Genetics and Biology 52: 20–31    www.fungalbiodiversitycentre.com/images/ResearchGroups/Phytopathology/pdf/2013%20O'Donnell%20Fusarium.pdf