Arachnida 
1.grada Anomomeristica 
subclassis Trilobita
2.grada Nomomeristica
subclassis Limulava
= LIMULAVIDA
ordo Copura
fam. Sidneyidae 
Sidneya
subclassis Merostomata
= Gigantostraca
ordo Xiphosura
ordo Eurypterida Eurypterus
subclassis Pectinifera
ordo Scorpiones Scorpio
subordo Apoxypoda
subordo Dionychopoda
subclassis Epectinata
superordo
Caulogastra
ordo Pedipalpi
subordo Uropygi
tribus Urotricha
= Oxopoei [Oxopaei]
fam. Thelyphonidae Thelyphonus
tribus Tartarides
fam. Hubbardiidae Hubbardia
subordo Amblypygi
ordo Araneae Araneus
subordo Mesothelae
fam. Liphistiidae Liphistius
subordo Opisthothelae
[Opisthathelae]
tribus Mygalomorphae
Mygale
= Atypus
tribus Arachnomorphae
ordo Palpigradi
fam. Koeneniidae Koenenia
= Eukoenenia
superordo
Cucullata (:206)
ordo Ricinulei
fam. Cryptostemmidae Cryptostemma
= Ricinoides
superordo
Pseudoscorpiones
ordo Chelonethi
subordo Panctenodactyli
fam. Cheliferidae Chelifer
fam. Garypidae Gerypus
subordo Hemictenodactyli
fam. Obisidae Obisium
fam. Chthoniidae Chthonius
superordo
Mycetophora
ordo Solifugae
fam. Galeodidae Galeodes
fam. Solpugidea Solpuga
superordo
Phalangiomorphae Phalangium
ordo Opiliones
subordo Palpatores
tribus Eupnoi
fam. Phalangiidae Phalangium
tribus Dyspnoi
fam. Nemastomidae Nemastoma
fam. Trogulidae Trogulus
etc.
subordo Laniatores
fam. Gonyleptidae Gonyleptes
fam. Oncopodidae Oncopus
subordo Cyphophthalmi
Cryphophthalmus
= Siro
fam. Sironidae Siro
superordo
Rhynchostomi
ordo Acari Acarus
subordo Euacari
fam. Oribatidae Oribata
fam. Gamasidae Gamasus
fam. Ixodidae Ixides
fam. Trombidiidae Trombidium
etc.
subordo Tetrapoda
fam. Eriophyidae Eriophyes
subordo Vermiformia
fam. Demodicidae Demodex