classis Arachnida 
subclassis Latigastra
superordo Pectinifera
ordo Scorpiones Hemprich 1826 
Scorpio
= Scorpionides Latreille 1817 Scorpio
= Scorpionida
Pearse 1936 Scorpio
= Scorpiides Koch 1837 Scorpio
superordo Epectinata
ordo Pseudoscorpiones Pavesi 1880
= Cheliferes Gervais 1844 Chelifer
= Chernetidae
Menge 1855 
Chernes
= Chernetes Simon 1879 Chernes
= Chelonethi
Thorell 1882 = Chelonethida
Cambridge 1892
= Pseudoscorpionides
Beier 1932 = Pseudoscorpionida
Petrunkevitch 1955
ordo Opiliones
= Phalangides Leach 1815 Phalangium
=
Phalangida Perty 1833 Phalangium
= Phalaqngiida Petrunkevitch 1955 Phalangium
ordo Acari Acarus
= Monomerosomata Leach 1815
= Acarina Nitsch 1818 Acarus
= Acarenses
Duges 1834 Acarus
= Acarida Englemann 1860
ordo Architarbi Architarbus
subclassis Stethostomata
ordo Haptopoda
ordo Anthracomarti Athracomartus
subclassis Soluta
ordo Trigonotarbi ATrigonotarbus
subclassis Caulogastra
superordo Latisterna
ordo Palpigradi
= Microthelyphonida Grassi 1885
= Palpigradida Pearse 1936
superordo Camarostomata
ordo Uropygi
= Thelyphoni Latreille 1804 Thelyphonus
=
Thelyphonida Canbridge 1878 Thelyphonus
= Holopeltidia Borner 1904
ordo Schizomida Petrunkevitch 1945 Schizomus=Hubbardia
= Colopyga
Cook 1899 = Schizopeltidia
Borner 1904
ordo Kustarachnae Kustarachne
superordo Labellata
ordo Amblypygi
= Phrynides Gervais 1844 Phrynus
= Phrynichida Petrunkevitch 1945 Phrynichus=
Phrynus
ordo Araneida Araneus
= Aranei Clerck 1757 Araneus
= Araneides Latreille 1801 Araneus
= Araneidea
Blackwall 1861 Araneus
= Araneae Araneus
superordo Rostrata
(:85)
ordo Solifugae
= Solpugides Leach 1815 Solpuga
= Solpugae Koch 1842 Solpuga
= Solpugidea
Cambridge 1872 Solpuga
= Solpugida Pearse 1936 Solpuga
= Mycetophorae
= Galeodes =f:Solpuga;
g:Galeodes
superordo Podogona
ordo Ricinulei
= Podogona = Rhignogastra
[Rhinogastra] Cook 1899
= Meridogastra
= Ricinuleida
Petrunkevitch 1945