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
Clupeocephala
Cohort Euteleosteomorpha (Greenwood et al., 1966)
Subcohort Neoteleostei Nelson, 1969
Infracohort Eurypterygia (Rosen, 1973)
Section Ctenosquamata Rosen, 1973
Subsection Acanthomorphata (Rosen, 1973)
Euacanthomorpha (Johnson & Patterson, 1993)
Holacanthopterygii Johnson & Patterson, 1993
Acanthopterygii Rosen & Patterson, 1969
Euacanthopterygii
Division Percomorphacea Wiley & Johnson, 2010
Order Cottiformes incertae sedis
Suborder Cottoideiᵀ Berg, 1940
Superfamily Cottoideaᵀ
Family Cyclopteridae Bonaparte, 1831
Genus Psednos Barnard, 1927
Psednos andriashevi Chernova, 2001
Psednos anoderkes Chernova & Stein, 2002
Psednos balushkini Stein, Chernova & Andriashev, 2001
Psednos barnardi Chernova, 2001
Psednos carolinae Stein, 2005
Psednos cathetostomus Chernova & Stein, 2002
Psednos christinae Andriashev, 1992
Psednos delawarei Chernova & Stein, 2002
Psednos dentatus Chernova & Stein, 2002
Psednos gelatinosus Chernova, 2001
Psednos griseus Chernova & Stein, 2002
Psednos groenlandicus Chernova, 2001
Psednos harteli Chernova, 2001
Psednos islandicus Chernova & Stein, 2002
Psednos melanocephalus Chernova & Stein, 2002
Psednos mexicanus Chernova & Stein, 2002
Psednos microps Chernova, 2001
Psednos micruroides Chernova, 2001
Psednos micrurus Barnard, 1927
Psednos mirabilis Chernova, 2001
Psednos nataliae Stein, Chernova & Andriashev, 2001
Psednos pallidus Chernova & Stein, 2002
Psednos sargassicus Chernova, 2001
Psednos spirohira Chernova & Stein, 2002
Psednos steini Chernova, 2001
Psednos whitleyi Stein, Chernova & Andriashev, 2001