Species (97)
- Stichospira paradoxa ssp. paradoxa
- Phryganella paradoxa ssp. paradoxa
- Oenopota paradoxa ssp. paradoxa
- Pistillaria paradoxa (P. Karst.) Corner 1950
- Nepticula paradoxa Frey, 1858
- Hyphodontia paradoxa (Schrad. : Fr.) Langer & Vesterh. 1996
- Typhula paradoxa (P. Karst.) Corner
- Dissoderma paradoxa (A.H. Sm. & Singer) Singer 1948
- Stigmella paradoxa (Frey, 1858)
- Paradoxa monospora Mattir. 1935
- Schizopora paradoxa (Schrad. : Fr.) Donk 1967
- Squamanita paradoxa (A.H. Sm. & Singer) Bas 1965
- Saxifraga paradoxa Sternb.
- Galatea paradoxa Born
- Phalaris paradoxa L.
- Cantharis paradoxa Hick.
- Arachnidiopsis paradoxa
- Pachydrobia paradoxa Crosse & Fischer
- Xystonellopsis paradoxa Jörgensen 1924
- Xystonellopsis paradoxa Cleve 1900
- Anoplophrya paradoxa
- Listerella paradoxa
- Bacellaria paradoxa
- Bacillaria paradoxa
- Berthelinella paradoxa
- Hemiphaedusa paradoxa
- Uronychia paradoxa
- Chorizogynopora paradoxa Reisinger
- Phryganella paradoxa Penard 1902
- Phryganella paradoxa Bonnet & Thomas 1960 ssp. alta
- Nitzschia paradoxa
- Stichospira paradoxa ssp. univacuolata
- Stichopira paradoxa
- Racovitzaiella paradoxa Tucolesco 1962
- Triloba paradoxa Mudrezowa 1929
- Oenopota paradoxa ssp. fischeri
- Oenopota paradoxa
- Heterogynis paradoxa Rambur, 1837
- Athalia paradoxa Konow
- Dufourea halictoides paradoxa Morawitz 1867
- Mielichhoferia paradoxa Herzog
- Anagenesia paradoxa Buldovskij
- Maupasia paradoxa Schewiakoff 1892
- Lebertia paradoxa Walter
- Veigaia paradoxa Willmann 1951
- Oplitis paradoxa Canestrini & Berlese 1884
- Caprina paradoxa
- Arachnidiopsis paradoxa Penard 1918
- Filichona paradoxa Jankowski 1973
- Euplotes paradoxa Kent 1869
- Schewiakoffia paradoxa Corliss 1960
- Spirotricha paradoxa Sterki 1897
- Stichospira paradoxa Sterki 1897
- Trichodinopsis paradoxa Claparède & Lachmann 1858
- Triloba paradoxa Mudrezowa-Wyss 1929
- Urceolaria paradoxa Claparède & Lachmann 1858
- Dufourea paradoxa ssp. mesembria EBMER
- Dufourea paradoxa ssp. nivalis EBMER
- Dufourea (Cephalictoides) paradoxa ssp. nepalensis EBMER
- Joenia paradoxa Hausmann, Radek & Gradias 2005
- Edaphospathula paradoxa Foissner & Xu 2007
- Bartheletia paradoxa G. Arnaud ex Scheuer, R. Bauer, M. Lutz, Stabenth.
- Ceratocystis paradoxa (Dade) C. Moreau 1952
- Trematosphaeria paradoxa G. Winter 1885
- Ombrophila paradoxa (R. Hedw.) Sacc. 1889
- Tilletia paradoxa Jacz. 1926
- Orbilia paradoxa Ade 1924
- Cryptocline paradoxa (De Not.) Arx 1957
- Bohemiellina paradoxa Mach.
- Quartinia paradoxa Brauns, 1905 1905
- Naeviella paradoxa (Rehm) Clem. 1909
- Pezicula paradoxa Dennis 1974
- Listerella paradoxa E. Jahn 1906
- Monodictys paradoxa (Corda) S. Hughes 1958
- Oenothera paradoxa Hudziok
- Osmia paradoxa ssp. sideritis Tkalcu, 1978
- Oryzopsis paradoxa (L.) Nult.
- Euphorbia paradoxa Schur.
- Silene paradoxa L.
- Dufourea paradoxa ssp. nepalensis MISSING
- Carex paradoxa Willd.
- Tuber monosporum (Mattir.) Vizzini 2008
- Carex appropinquata Schum.
- Carex paradoxa X diandra A. & G.
- Stigmella juryi Puplesis, 1991
- Halictoides paradoxus Morawitz 1867
- Irpex deformis (Schrad. ex Fr.) Fr. 1828
- Sistotrema obliquum (Schrad.) Alb. & Schwein. 1805
- Xylodon versiporus (Pers.) Bondartsev 1953
- Dissoderma umbilicatum (Harmaja) Bon 1999
- Cystoderma paradoxum A.H. Sm. & Singer 1948
- Squamanita basii Harmaja 1988
- Squamanita umbilicata Harmaja 1988
- Dissoderma basii (Harmaja) Bon 1999
- Trochila craterium (DC.) Fr. 1849
- Orbilia xanthostigma (Fr.) Fr. 1849
- Carex X limnogena Apfel