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Authors: Prendini, L.
Thirty-six genus-group names are available in the arachnid Order Thelyphonida Latreille, 1804 by the end of 2025. Thirty of these refer to currently accepted genera: 20 extant and ten extinct. Six genus-group names are in synonymy. Eighteen (60%) of the currently accepted genera were described since 1950. Thelyphonida includes 138 currently accepted species-group names (123 extant species, including three extant subspecies elevated to the rank of species herein, and 15 extinct species) and a nomen dubium. The phylogeny and suprageneric classification of the order remain poorly understood and several subfamilies appear to be paraphyletic. The systematics of Asian thelyphonids lags far behind that of New World thelyphonids.