IRMNG Taxon list
Synsphaeridium Eisenack, 1965 †[Phylum: Acritarcha] Synsphaeridium Playford[Phylum: Fungi (awaiting allocation)] Synsphaeridium Timofeev, 1966 †[Phylum: Acritarcha] Synsphaeridium catenarium Playford in Playford & Dring, 1981 †Synsphaeridium compactum Medvedeva in Medvedeva & Kuzovleva, 1971 †Synsphaeridium gotlandicum Eisenack, 1965 †Synsphaeridium imbecillum Chepikova, 1971 †Synsphaeridium paulum Potter in Baudelot & Géry, 1979 †Synsphaeridium rarum Medvedeva in Medvedeva & Kuzovleva, 1971 †Synsphaeridium ruminatum Chepikova, 1971 †Synsphaeridium solidum Chepikova, 1971 †Synsphaeridium sorediforme (Timofeev, 1959 ex Downie & Sarjeant, 1965) Timofeev, 1969 †Synsphaeridium spinosum Moreau-Benoît, 1974 †Synsphaeridium switjasium Kiryanov, 1974 †Synsphaeridium tenuatum Chepikova, 1971 †Synsphaeridium tuberculatum Eisenack, 1965 †
