Family † Permithonidae Tillyard, 1922

† Permithonidae Tillyard, 1922: 289 [type genus: † Permithone Tillyard, 1922: 289].

† Sialidopsidae M.D. Zalessky, 1928: 693 [type genus: † Sialidopsis M.D. Zalessky, 1926: 76]. — Prokop et al. 2015: 265.

Taxonomic notes

Zalessky (1928) described the family † Sialidopsidae – based on the single genus † Sialidopsis M.D. Zalesky, 1926 – which Martynov (1928) placed in the order Megaloptera . Here, we follow Prokop et al. (2015) in treating † Sialidopsis in the family † Permithonidae, and Engel et al. (2018) in treating † Permithonidae as Neuropterida incertae sedis . † Permithonidae currently contains>20 genera, of which only † Sialidopsis appears to have been previously placed in Megaloptera .