Synsphyronus paradoxus is a species of pseudoscorpion in the Garypidae family. It was described in 1930 by American arachnologist Joseph Conrad Chamberlin.
The species occurs in central and south-eastern Australia in the Lake Eyre and MurrayâÂÂDarling basins in woodland habitats, often under bark. The type locality is Menindee.
The pseudoscorpions are terrestrial predators.