 Prior to the description by Rosling and colleagues, Archaeorhizomycetes was referred to as Soil Clone Group 1 or SCGI after it was originally discovered tundra soils and reported in 2003 by Schadt et al.The taxa were only known from ribosomal DNA sequencing but it had been found independently in ecological studies of soil in more than fifty cases worldwide using three different gene regions.However, neither fruit bodies nor spores had been observed.