Paraspizellomycetales Tedersoo ord. nov.

Type family.

Paraspizellomycetaceae Tedersoo .

Diagnosis.

Distinguishable from other fungi based on a diagnostic nucleotide signature in LSU D 1 (positions 128–142 in type species and 123–137 in S. cerevisiae cggttcgccggtgcg or gggttcttacctatg or gggttccacctatgc; one mismatch allowed). Forms a monophyletic, least inclusive clade in Spizellomycetes, covering sequences EUK 1138322, EUK 1152022, EUK 1187448, EUK 1202178, EUK 1187441, EUK 1187447, UDB 014658, EUK 1100628, EUK 1123745, and EUK 1139262 (Fig. 1).

Notes.

Recognized based on eDNA sequences only. Encoded as clade GS 14 in EUKARYOME v 1.9. Currently includes Paraspizellomycetaceae (fam. nov.) and one or more potentially family-level groups represented by sequences EUK 1138322, EUK 1152022 (both forest soil in New Zealand), EUK 1187448 (forest soil in Chile), and EUK 1202178 (tundra soil in Norway). Comprises potentially around 50–70 species. Detected in soil (94.6 % out of the 159 records), sediments (4.2 %), and freshwater (1.2 %) in tundra to tropical biomes across all continents except Antarctica.