Archaeosporales

Archaeosporales
Scientific classification
Kingdom:	Fungi
Division:	Glomeromycota
Class:	Glomeromycetes
Order:	Archaeosporales C.Walker & A.Schüßler (2004)
Families
Ambisporaceae Ambispora Ambispora appendicula Ambispora callosa Ambispora fennica Ambispora gerdemannii Ambispora granatensis Ambispora leptoticha Archaeosporaceae Archaeospora Archaeospora gerdemannii Archaeospora leptoticha Archaeospora schenckii Archaeospora trappei Geosiphonaceae Geosiphon Geosiphon pyriformis †Horodyskia †Horodyskia moniliformis †Horodyskia minor †Horodyskia williamsii †Diskagma †Diskagma buttonii

Archaeosporales is an order of fungi best known as arbuscular mycorrhiza to vascular land plants (Tracheophyta). but also form free living endocyte symbioses with cyanobacteria. The free living forms have a Precambrian fossil record back 2.2 Ga, well before evolution of Tracheophyta.