First record of fossil basidiomycete clamp connections in cordaitalean stems from the Asselian-Sakmarian (lower Permian) of Shanxi Province, North China
Clamp-bearing hyphae are firstly recorded from the late Palaeozoic of Cathaysia. Basidiomycetes associating with cordaite stem are firstly found in the Permian. It expands the knowledge of Permian basidiomycetous diversity and their host.