Chamberlin 1931 : The Arachnid Order Chelonethida | |
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Stanford University Publications in Biological Science | Harvey 1991 : Catalogue of the Pseudoscorpionida |
In "Synopsis and Classification of Living Organisms.
21Gabbutt 1970 : Validity of Life History Analyses of Pseudoscorpions | South African National Survey of Arachnids |
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Cokendolpher 1990 : The Systematic Status of Arachnida, Exclusive of Acari, in North America North of Mexico | Journal of Natural History 4: 1—15 |
"The first Paleozoic pseudoscorpions Arachnida, Pseudoscorpionida ".
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