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 Deuterostomia Grobben, 1908
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Myopterygii - myopterygians
Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
Grade Teleostomi Bonaparte, 1836
Euteleostomi - bony vertebrates
Class Actinopterygii Woodward, 1891 - ray-finned fishes
[crown] Actinopteri Cope, 1871
Subclass Neopterygii Regan, 1923
Infraclass Teleostei Müller, 1845
Supercohort Teleocephala de Pinna, 1996
Cohort Osteoglossomorpha Greenwood et al., 1966
Order Osteoglossiformesᵀ Berg, 1940 - bonytongues
[crown] Suborder Notopteroidei
Family Mormyridae Bonaparte, 1831 [paraphyletic] - elephantfishes
Genus Petrocephalus Marcusen, 1854
01 Petrocephalus ansorgii Boulenger, 1903
02 Petrocephalus balayi Sauvage, 1883
03 Petrocephalus bane (Lacepède, 1803)
04 Petrocephalus binotatus Pellegrin, 1924
05 Petrocephalus bovei (Valenciennes, 1846)
06 Petrocephalus catostoma (Günther, 1866)
07 Petrocephalus christyi Boulenger, 1920
08 Petrocephalus cunganus Boulenger, 1910
09 Petrocephalus gliroides (Vinciguerra, 1897)
10 Petrocephalus grandoculis Boulenger, 1920
11 Petrocephalus guttatus Fowler, 1936
12 Petrocephalus hutereaui (Boulenger, 1913)
13 Petrocephalus keatingii Boulenger, 1901
14 Petrocephalus levequei Bigorne & Paugy, 1991
15 Petrocephalus microphthalmus Pellegrin, 1908
16 Petrocephalus pallidomaculatus Bigorne & Paugy, 1991
17 Petrocephalus pellegrini Poll, 1941
18 Petrocephalus sauvagii (Boulenger, 1887)
19 Petrocephalus schoutedeni Poll, 1954
20 Petrocephalus simus Sauvage, 1879
21 Petrocephalus soudanensis Bigorne & Paugy, 1991
22 Petrocephalus squalostoma (Boulenger, 1915)
23 Petrocephalus sullivani Lavoué, Hopkins & Kamdem Toham, 2004
24 Petrocephalus tenuicauda (Steindachner, 1895)
25 Petrocephalus wesselsi Kramer & van der Bank, 2000