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The Saladas de Sástago-Bujaraloz is an endorheic and arheic complex of lagoons located in the Ebro Basin and protected by the Ramsar Convention on Wetlands. Due to the semi-arid climate of the region and the high salinity of their waters, these lagoons constitute an extreme environment. We surveyed the biodiversity of salt-tolerant and halophilic fungi residents of the Laguna de Pito, a lagoon belonging to this complex. Therefore, we collected several samples of water, sediments, and soil of the periphery. Throughout the study, we isolated 21 fungal species, including a strain morphologically related to the family <i>Microascaceae</i>. However, this strain did not morphologically match any of genera within this family. After an in-depth morphological characterization and phylogenetic analysis using a concatenated sequence dataset of four phylogenetically informative molecular markers (the internal transcribed spacer region (ITS) of the nuclear ribosomal DNA (nrDNA); the D1-D2 domains of the 28S gene of the nuclear ribosomal RNA (LSU); and a fragment of the translation elongation factor 1-alpha (<i>EF-1α</i>) and the β-tubulin (<i>tub</i>2) genes), we established the new genus <i>Dactyliodendromyces</i>, with <i>Dactyliodendromyces holomorphus</i> as its species. Additionally, as a result of our taxonomic study, we reclassified the paraphyletic genus <i>Wardomyces</i> into three different genera: <i>Wardomyces sensu stricto</i>, <i>Parawardomyces</i> gen. nov., and <i>Pseudowardomyces</i> gen. nov., with <i>Parawardomyces ovalis</i> (formerly <i>Wardomyces ovalis</i>) and <i>Pseudowardomyces humicola</i> (formerly <i>Wardomyces humicola</i>) as the type species of their respective genera. Furthermore, we propose new combinations, including <i>Parawardomyces giganteus</i> (formerly <i>Wardomyces giganteus</i>) and <i>Pseudowardomyces pulvinatus</i> (formerly <i>Wardomyces pulvinatus</i>).