Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
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
Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
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 Spiralia Schleip, 1929
Clade Gnathifera Ahlrichs, 1995
Phylum Chaetognatha Leuckart, 1854 - chaetognaths
Class Sagittoidea
Order Biphragmophora Casanova, 1985
Family Spadellidae Tokioka, 1965
Genus Spadellaᵀ Langerhans, 1880
01 Spadella angulata Tokioka, 1951
02 Spadella antarctica Casanova, 1991
03 Spadella birostrata Casanova, 1987
04 Spadella boucheri Casanova & Perez, 2000
05 Spadella bradshawi Bieri, 1974
06 Spadella cephalopteraᵀ (Busch, 1851)
07 Spadella equidentata Casanova, 1987
08 Spadella gaetanoi Alvariño, 1978
09 Spadella japonica Casanova, 1993
10 Spadella lainezi Casanova et al., 2006
11 Spadella ledoyeri Casanova, 1986
12 Spadella moretonensis Johnston & Taylor, 1920
13 Spadella nunezi Casanova & Moreau, 2004