Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade dorsates Cavalier-Smith, 2021
Clade podiates Cavalier-Smith, 2012
[crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
[crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
[crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
Kingdom Animalia Linnaeus, 1758 - animals
Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
Subkingdom Bilateria Hatschek, 1888 - bilaterians
Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
Infrakingdom Protostomia Grobben, 1908
Superphylum Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
Panarthropoda Nielsen, 1995 - panarthropods
Tactopoda Budd, 2001
Phylum Arthropoda Siebold, 1848 - arthropods
Euarthropoda
Subphylum Chelicerata Heymons, 1901
Euchelicerata Weygoldt & Paulus, 1979
Prosomapoda Lamsdell, 2013
Planaterga Lamsdell, 2013
Dekatriata Lamsdell, 2013
Sclerophorata Kamenz, Staude & Dunlop, 2011
Class Arachnida Lamarck, 1801
Micrura Hansen & Sørensen, 1904
Pantetrapulmonata Shultz, 2007
Tetrapulmonata Shultz, 1990
Serikodiastida Garwood & Dunlop, 2014
Order Araneae Clerck, 1757 - spiders
Suborder Opisthothelae Pocock, 1892 - modern spiders
[crown] Infraorder Araneomorphae Smith, 1902
Neocribellatae
Araneoclada
Haplogynae
Superfamily Pholcoidea C.L. Koch, 1851
Family Pholcidaeᵀ C.L. Koch, 1850
Genus Physocyclus Simon, 1893
01 Physocyclus bicornis Gertsch, 1971
02 Physocyclus californicus Chamberlin & Gertsch, 1929
03 Physocyclus cornutus Banks, 1898
04 Physocyclus dugesi Simon, 1893
05 Physocyclus enaulus Crosby, 1926
06 Physocyclus globosusᵀ (Taczanowski, 1874) Simon, 1893
07 Physocyclus guanacaste Huber, 1998
08 Physocyclus hoogstraali Gertsch & Davis, 1942
09 Physocyclus lautus Gertsch, 1971
10 Physocyclus merus Gertsch, 1971
11 Physocyclus mexicanus Banks, 1898
12 Physocyclus modestus Gertsch, 1971
13 Physocyclus mysticus Chamberlin, 1924
14 Physocyclus pedregosus Gertsch, 1971
15 Physocyclus reddelli Gertsch, 1971
16 Physocyclus rotundus O. P.-Cambridge, 1898
17 Physocyclus tanneri Chamberlin, 1921
18 Physocyclus validus Gertsch, 1971
19 Physocyclus viridis Mello-Leitão, 1940