| Suborder | Carapacea
McCafferty, 1997
Armored mayflies | 2
10
83 | Families
Genera
Species |
| Suborder | Furcatergalia
Kluge, 1993
| 34
450
3347 | Families
Genera
Species |
| Suborder | Pisciforma
McCafferty, 1991 ⇒ Pannota
| 14
342
4029 | Families
Genera
Species |
| Suborder | Schistonota
McCafferty & Edmunds, 1979
| 0
0
0 | Families
Genera
Species |
| Family | Aenigmephemeridae ♰
Tshernova, 1968
| 1
1 | Genus
Species |
| Family | Ametropidae
Bengtsson, 1913
| 0
0 | Genera
Species |
| Family | Australiphemeridae ♰
McCafferty, 1991
| 2
2 | Genera
Species |
| Family | Babidae ♰
Kluge, Godunko & Krzeminski, 2006
| 1
1 | Genus
Species |
| Family | Baetida
| 0
0 | Genera
Species |
| Family | Binoculidae
Demoulin, 1954
| 0
0 | Genera
Species |
| Family | Bojophlebiidae
Kukalova-Peck, 1985
| 1
2 | Genus
Species |
| Family | Brachycercidae
Lestage, 1924
| 0
0 | Genera
Species |
| Family | Callibaetidae
Riek, 1973
| 0
0 | Genera
Species |
| Family | Chromarcyidae
| 0
0 | Genera
Species |
| Family | Cloeonidae
Newman, 1853
| 0
0 | Genera
Species |
| Family | Coenidae
Newman, 1853
| 0
0 | Genera
Species |
| Family | Dipteromimidae
Kluge, Studemann, Landolt & Gonser, 1995
| 0
0 | Genera
Species |
| Family | Ecdyoneuridae
| 1
14 | Genus
Species |
| Family | Epeoromimidae ♰
Tshernova, 1969
| 1
2 | Genus
Species |
| Family | Ephemeropsidae
Cockerell, 1927
| 0
0 | Genera
Species |
| Family | Ephoridae
Traver in Needham, Traver & Hsu, 1935
| 0
0 | Genera
Species |
| Family | Fuyoidae ♰
Zhang & Kluge, 2007
| 1
1 | Genus
Species |
| Family | Heptaeniidae ⇒ Heptageniidae
| 0
0 | Genera
Species |
| Family | Hexagenitidae ♰
Lameere, 1917
| 18
47 | Genera
Species |
| Family | Hexgenitidae ⇒ Hexagenitidae
| 0
0 | Genera
Species |
| Family | Isonychiinae
| 0
0 | Genera
Species |
| Family | Jarmilidae ♰
Demoulin, 1970
| 2
5 | Genera
Species |
| Family | Leptophlebidae
| 0
0 | Genera
Species |
| Family | Leptophlebioidea
| 0
0 | Genera
Species |
| Family | Lithoneuridae
Sroka & al., 2014
| 2
6 | Genera
Species |
| Family | Litophlebiidae ♰
Hubbard & Riek, 1978
| 1
1 | Genus
Species |
| Family | Mesephemeridae ♰
Lameere, 1917
| 4
10 | Genera
Species |
| Family | Mesonetidae ♰
Chemova, 1970
| 0
0 | Genera
Species |
| Family | Mesoplectopteridae ♰
Demoulin, 1955
| 1
1 | Genus
Species |
| Family | Misthodontidae
| 0
0 | Genera
Species |
| Family | Misthodotidae ♰
Tillyard, 1932
| 6
17 | Genera
Species |
| Family | Oboriphlebiidae ♰
Hubbard & Kukalova-Peck, 1980 ⇒ Jarmilidae
| 0
0 | Genera
Species |
| Family | Paedephemeridae
Lameere, 1917
| 0
0 | Genera
Species |
| Family | Palaeoanthidae ♰
Kluge, 1994
| 0
0 | Genera
Species |
| Family | Palingeniopsidae ♰
Martynov, 1938 ⇒ Mesephemeridae
| 0
0 | Genera
Species |
| Family | Philolimniidae
| 0
0 | Genera
Species |
| Family | Prosopistomidae
Lameere, 1917
| 0
0 | Genera
Species |
| Family | Protereismatidae ♰
Lameere, 1917
| 15
54 | Genera
Species |
| Family | Protereismephemeridae ♰
Sellards, 1907
| 0
0 | Genera
Species |
| Family | Sharephemeridae ♰
Sinitshenkova, 2002
| 4
3 | Genera
Species |
| Family | Siphluridae
| 0
0 | Genera
Species |
| Family | Stenodicranidae
Demoulin, 1954
| 0
0 | Genera
Species |
| Family | Syntonopteridae ♰
Handlirsch, 1911
| 4
4 | Genera
Species |
| Family | Tintorinidae ♰
Krzeminski & Lombardo, 2001
| 1
1 | Genus
Species |
| Family | Torephemeridae ♰
Sinitshekova, 1989
| 3
5 | Genera
Species |
| Family | Toxodotidae ♰
Sinitshenkova & Papier, 2005
| 1
1 | Genus
Species |
| Family | Triassoephemeridae ♰
Sinitshenkova & Papier, 2005
| 1
1 | Genus
Species |
| Family | Triassomanthidae ♰
Sinitshenkova & Papier, 2005
| 1
1 | Genus
Species |
| Family | Triplosobidae ♰
Handlirsch, 1906
| 2
1 | Genera
Species |
| Family | Vogesonymphidae ♰
Sinitshenkova & Papier, 2005
| 3
3 | Genera
Species |
| Family | Voltziaephemeridae ♰
Sinitshenkova & Papier, 2005
| 1
1 | Genus
Species |
| Genus | Adenophelbia
| 3 | Species |
| Genus | Adenophleboides
| 1 | Species |
| Genus | Afrobaetoides
| 1 | Species |
| Genus | Agnatina
Rafinesque, 1815
| 0 | Species |
| Genus | Astraeoptera
Brandão et al., 2021
| 1 | Species |
| Genus | Austrophelboides
Campbell & Suter, 1988
| 0 | Species |
| Genus | Cloea
Billberg, 1820
| 0 | Species |
| Genus | Dyadentomum ♰
Handlirsch, 1904
| 1 | Species |
| Genus | Libanoephemera
Azar, de la Ferté, El Hajj, Nel & Maksoud, 2019
| 1 | Species |
| Genus | Macrocercus
Westwood in Partington, 1836
| 0 | Species |
| Genus | Madecocerus
Malzacher, 1995
| 0 | Species |
| Genus | Mesonetopsis ♰
Ping, 1935
| 1 | Species |
| Genus | Minorella ♰
Sinitshenkova & Papier, 2005
| 1 | Species |
| Genus | Miocenogenia
| 0 | Species |
| Genus | Next
| 0 | Species |
| Genus | Oligonuria
| 0 | Species |
| Genus | Phaulobranchus ♰
Handlirsch, 1906
| 0 | Species |
| Genus | Records
| 0 | Species |
| Genus | Rhithrogenella
| 0 | Species |
| Genus | Rithrogeniella
Ulmer, 1939
| 0 | Species |
| Genus | Schistonotorum
Jarzembowski & Wang, 2019
| 1 | Species |
| Genus | Simbiocloeon
Müller-Liebenau in Müller-Liebenau & Heard, 1979
| 0 | Species |
| Genus | Simothaulopsis ♰
Demoulin, 1966
| 0 | Species |
| Genus | Thraululus
Ulmer, 1939
| 0 | Species |
