1. Genus Anoplocotyloides Young, 1967
2. Genus Calicotyle Diesing, 1850
3. Subfamily Cathariotrematinae Bullard in Bullard, Warren & Dutton, 2021
   1. Genus Cathariotrema Johnston & Tiegs, 1922
   2. Genus Holocephalocotyle Derouiche, Neifar, Gey, Justine & Tazerouti, 2019
   3. Genus Septitrema Kheddam, Chisholm & Tazerouti, 2020
   4. Genus Squalotrema Kearn & Green, 1983
   5. Genus Triloculotrema Kearn, 1993
4. Genus Clemacotyle Young, 1967
5. Genus Dasybatotrema Price, 1938
6. Subfamily Dasybatotreminae Bychowsky, 1957
7. Genus Decacotyle Young, 1967
8. Subfamily Decacotylinae Chisholm, Wheeler & Beverley-Burton, 1995
9. Genus Denarycotyle Pulido-Flores, Monks & Violante-González, 2015
10. Genus Dendromonocotyle Hargis, 1955
11. Genus Dictyocotyle Nybelin, 1941
12. Genus Electrocotyle Vaughan, Chisholm & Hansen, 2016
13. Genus Euzetia Chisholm & Whittington, 2001
14. Genus Heliocotyle Neifar, Euzet & Ben Hassine, 1999
15. Genus Heterocotyle Scott, 1904
16. Subfamily Heterocotylinae Chisholm, Wheeler & Beverley- Burton, 1995
17. Subfamily Loimoinae Price, 1936
    1. Genus Loimopapillosum Hargis, 1955
    2. Genus Loimos MacCallum, 1917
    3. Genus Loimosina Manter, 1944
    4. Genus Tricotyle Manter, 1938 accepted as Loimos MacCallum, 1917 (Synonym)
18. Genus Malalophus Chisholm & Whittington, 2009
19. Genus Mehracotyle Neifar, Euzet & Ben Hassine, 2002
20. Subfamily Merizocotylinae Johnston & Tiegs, 1922
    1. Genus Empruthotrema Johnston & Tiegs, 1922
    2. Genus Merizocotyle Cerfontaine, 1894
    3. Genus Mycteronastes Kearn & Beverley-Burton, 1990
    4. Genus Thaumatocotyle Scott, 1904
21. Genus Monocotyle Taschenberg, 1878
22. Subfamily Monocotylinae Taschenberg, 1879
23. Genus Myliocotyle Neifar, Euzet & Ben Hassine, 1999
24. Genus Neoheterocotyle Hargis, 1955
25. Genus Paracalicotyle Szidat, 1970
26. Genus Peruanocotyle Chero, Cruces, Sáez & Luque, 2018
27. Genus Septesinus Chisholm, 2013
28. Genus Spinuris Doran, 1953
29. Genus Timofeevia Chisholm, Wheeler & Beverley-Burton, 1995
30. Genus Troglocephalus Young, 1967
31. Genus Alloheterocotyla Yamaguti, 1968 accepted as Decacotyle Young, 1967 (synonym)
32. Genus Austrocalicotyle Szidat, 1970 accepted as Calicotyle Diesing, 1850 (synonym)
33. Genus Diploheterocotyla Yamaguti, 1965 accepted as Heterocotyle Scott, 1904 (synonym)
34. Genus Gymnocalicotyle Nybelin, 1941 accepted as Calicotyle Diesing, 1850 (synonym)
35. Genus Heterocotyle Unnithan, 1964 nec Scott, 1904 accepted as Heteromazocraes Mamaev, 1981 (Pre-occupied)
36. Genus Horricauda Tripathi, 1959 accepted as Neoheterocotyle Hargis, 1955 (synonym)
37. Genus Monocotyloides Johnston, 1934 accepted as Heterocotyle Scott, 1904 (Synonym )
38. Genus Papillicotyle Young, 1967 accepted as Decacotyle Young, 1967 (synonym)
39. Genus Paramonocotyle Johnston, 1934 accepted as Cathariotrema Johnston & Tiegs, 1922 (Synonym )
40. Subfamily Quadritestinae Gomez del Prado & Euzet, 1997 (unaccepted > nomen nudum, Erected in an unpublished abstract)
41. Genus Quadritestis Gomez del Prado & Euzet, 1997 (unaccepted > nomen nudum, Erected in an unpublished abstract)
42. Genus Tympanocirrus Tripathi, 1959 accepted as Monocotyle Taschenberg, 1878 (synonym)

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