| †Acanthoscorpioniidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 30 ("Kjellesvig-Waering, 1986"). |
| †Branchioscorpioniidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 29 ("Kjellesvig-Waering, 1986"). |
| Chthonoidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 47 ("Daday, 1888"). |
| Compatozetidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 89 ("Luxton, 1988"). [pro syn.]. |
| Denderoeremaeidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 97 ("author, date?"). |
| †Dolichophoniidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 29 ("Petrunkevitch, 1953"). |
| †Echinopustulatus (Genus) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 40 ("Dunlop, 2004"). |
| Eupyctima ([unranked]) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 84 ("Grandjean, 1967"). |
| Glycophagoidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 104 ("Berlese, date?"). |
| †Gondwanarache (Genus) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 117 ("Pinto & Hünicken, 1980"). |
| Hemiscarpoctoidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 104 ("Oudemans, 1908"). |
| Holotyhroidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 55 ("Thorell, 1882"). |
| Hoplophthiacarus (Genus) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 84 ("Jacot, 1933"). |
| Hungarohydracacaridae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 75 ("Motas & Tanasachi, 1959"). |
| Hydracarnidiae (Subcohort) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 71 ("van der Hoeven, 1849"). |
| Iochierata (Suborder) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 48 ("Harvey, 1992"). |
| Nipponosalididae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 41 ("Martens, 1976"). |
| †Palaeoeuscorpidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 37 ("Lourenço, 2003"). |
| †Palaeoscorpoidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 32 ("Lehmann, 1944"). |
| †Praercturidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 32 ("Kjellesvig-Waering, 1986"). |
| Protonematalycidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 80 ("Kethley, 1989"). |
| †Pterygotioidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 23 ("Clarke & Ruedemann, 1912"). |
| Scorpionioidea (Superfamily) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 35 ("Latreille, 1802"). |
| †Stenoscorpioniidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 30 ("Kjellesvig-Waering, 1986"). |
| Trichtochthoniidae (Family) Dunlop, Penney & Jekel, 2010, orth. inval. | Page: 83 ("author, date?"). |