1. Koch) (Arachnidae, Pseudoscorpion, Cheliferidae)].

2. Two other obligate stygobionts were exterminated in the same action – the pseudoscorpion Microcreagris nickajackensis and the ground beetle Pseudanophthalmus nickajackensis.

3. It has all of the traits of a modern pseudoscorpion, indicating that the order evolved very early in the history of land animals.