Class *Hypoparia Beecher 1897 *Hypoparea 



Class *Opisthoparia Beecher 1897 *Opisthoparea 



Class *Proparia Beecher 1897 *Proparea 



Subphylum Chelicerata Dahl 1913 Chelicerata 



Class Merostomata Woodward 1878 Merostomatea 



Order *Eurypterida Woodward 1878 *Eurypterida 



Order *Synxiphosura Packard 1885 *Synxiphosurida 



Order Xiphosura Latreille 1806 Xiphosurida 



Class Pycnogonida Latreille 1804 Pycnogonidea 



Order Colossendeomorpha Cole 1905 Colossendeomorphida 



Order Nymphonomorpha Pocock 1904 Nymphonomorphida 



Order Ascorhynchomorpha Pocock 1904 Ascorhynchomorphida 



Order Pycnogonomorpha Pocock 1904 Pycnogonomorphida 



Class Arachnida Lamarck 1815 Arachnidea 



Order Scorpionida Latreille 1810 Scorpionida 



Order Palpigrada Thorelle 1888 Palpigradida 



Order Pedipalpi Latreille 1806 Pedipalpida 



Suborder Uropygi Thorell 1882 Uropygina 



Suborder Amblypygi Thorell 1883 Amblypygina 



Order SoLpugida Sundevall 1833 Solpugida 



Order *Anthracomarti Karsch & Scudder *Anthracomartida 



Order Phalangida Latreille 1802 Phalangida 



Suborder Cyphophthalmi Simon 1879 Cyphothalmina 



Suborder Laniatores Thorell 1876 Laniatorina 



Suborder Palpatores Thorell 1876 Palpatorina 



Order Chelonethida Duges 1834 Chelonethida 



Order Ricinulida Latreille 1802 Ricinulida 



Order Araneida Lamarck 1818 Araneida 



Suborder Liphistiomorphae Liphistiomorphina 



Suborder Mygalomorphae Banks 1905 Mygalomorphina 



Suborder Hypochilomorphae Petrunkevitch 1933 Hypochilomorphina 



Suborder Dipneumonomorphae Petrunkevitch 1933 Dipneumonomorphina 



Suborder Apneumonomorphae Petrunkevitch 1933 Apneumonomorphina 



Subclass Acarina Nitsch 1818 Acarinia 



Order Onychopalpida Nom nov Onychopalpida 



Suborder Notostigmata With 1903 Notostigmatina 



Suborder Holothyroidea Reuter 1909 ' Holothyroidina 



Order Parasitiformes Reuter 1909 Parasitida 



Suborder Megisthanina Tragardh 1946 Megisthanina 



Suborder Liroaspina Tragardh 1946 Liroaspina 



Suborder Microgyniina Tragardh 1942 Microgyniina 



Suborder Thinozerconina Tragardh 1946 Thinozerconina 



Suborder Zerconina Tragardh 1944 Zerconina 



Suborder Gamasides Tragardh Leach 1814 Gamasina 



Suborder Trachytina Tragardh 1937 Trachytina 



Suborder Uropodina Kramer 1881 Uropodina 



Suborder Diarthrophallina Tragardh 1946 Diarthrophallina 



Suborder Caelenopsina Tragardh 1938 Caelenopsina 



Suborder Fedrizziina Tragardh 1938 Fedrizziina 



Suborder Ixodoidea Leach 1815 Ixodina 



Order Trombidiformes Reuter 1909 Trombida 



Suborder Tarsonemidae Canestrini & Fanzago 1877 Tarsonemina 



[12] 



