Kingdom Fungi R.T.Moore (1980) - fungi Phylum Chytridiomycota Doweld (2001) Class Spizellomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018) [monotypic] Order Spizellomycetales D.J.S. Barr (1980) Family Spizellomycetaceae D.J.S. Barr (1980) Genus Triparticalcar D.J.S. Barr (1980) [monotypic] Triparticalcar arcticumᵀ (D.J.S. Barr) D.J.S. Barr (1980)