Cristidiscoidea or Nucleariae is a proposed basal holomycota clade in which Fonticula and Nucleariida emerged, as sister of the fungi. Since it is close to the divergence between the main lineages of fungi and animals, the study of Cristidiscoidea can provide crucial information on the divergent lifestyles of these groups and the evolution of opisthokonts and slime moldmulticellularity.[1] The holomycota tree is following Tedersoo et al.[2][3][4]