Family Archaeosporaceae J.B. Morton & D. Redecker (2001)
   Genus Appendicispora Spain, Oehl & Sieverd. (2006), nom. illeg. see Genus Ambispora C. Walker, Vestberg & A. Schüßler (2007)
     1 Appendicispora appendicula (Spain, Sieverd. & N.C. Schenck) Spain, Oehl & Sieverd. (2006) see Ambispora appendicula (Spain, Sieverd. & N.C. Schenck) C. Walker (2008)
     2 Appendicispora gerdemannii (S.L. Rose, B.A. Daniels & Trappe) Spain, Oehl & Sieverd. (2006) see Ambispora gerdemannii (S.L. Rose, B.A. Daniels & Trappe) C. Walker, Vestberg & A. Schüßler (2007)
     3 Appendicispora jimgerdemannii Spain, Oehl & Sieverd. (2006) see Ambispora jimgerdemannii (Spain, Oehl & Sieverd.) C. Walker (2008)