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 Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
Clade Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
Clade Trochozoa Beklemischev, 1944 - trochozoans
Clade Tetraneuralia Wanninger 2009
Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Ganglioneura Rudophi, 1812
Clade Pleistomollusca Kocot, Cannon, Todt, Citarella, Kohn, Meyer, Santos, Schander, Moroz, Lieb & Halanych 2011
Class Bivalvia Linnaeus, 1758 - bivalves
Subclass Autobranchia Grobben, 1894
Superorder Heteroconchia Gray, 1854
Clade Heterodonta Neumayr, 1884
Order Venerida Gray, 1854
Superfamily Sphaerioidea Deshayes, 1855 (1820)
Family Sphaeriidaeᵀ Deshayes, 1855 (1820) - freshwater fingernail clams
Genus Pisidium Pfeiffer, 1821
Pisidium amnicum (Müller, 1774) - greater European peaclam
Pisidium casertanum (Poli, 1791) - ubiquitous peaclam
Pisidium conventus Clessin, 1877 - alpine peaclam
Pisidium henslowanum (Sheppard, 1823) - Henslow peaclam
Pisidium hibernicum Westerlund, 1894
Pisidium lilljeborgii Clessin, in Esmark & Hoyer, 1886
Pisidium milium Held, 1836 - quadrangular pillclam
Pisidium moitessierianum Paladilhe, 1866
Pisidium nitidum Jenyns, 1832 - shiny peaclam
Pisidium obtusale (Lamarck, 1818)
Pisidium personatum Malm, 1855
Pisidium pseudosphaerium Favre, 1927
Pisidium pulchellum Jenyns, 1832
Pisidium subtruncatum Malm, 1855 - shortended peaclam
Pisidium supinum Schmidt, 1851 - humpbacked peaclam
Pisidium tenuilineatum Stelfox, 1918
Pisidium torquatum Stelfox
01 Subgenus Pisidium (Afropisidium) Kuiper, 1962
02 Subgenus Pisidium (Cyclocalyx) Dall, 1903
03 Subgenus Pisidium (Europisidium) Starobogatov, 1984
04 Subgenus Pisidium (Kuiperipisidium) Izzatullaev & Starobogatov, 1986
05 Subgenus Pisidium (Neopisidium) Odhner, 1921
06 Subgenus Pisidium (Odhneripisidium) Kuiper, 1962
07 Subgenus Pisidium (Parapisidium) Kuiper, 1966
08 Subgenus Pisidium (Pisidium)ᵀ Pfeiffer, 1821
09 Subgenus Pisidium (Tuvapisidium) Izzatullaev & Starobogatov, 1986
10 Subgenus Pisidium (Ussuripisidium) Izzatullaev & Starobogatov, 1986