Plagiorchiida is a large

order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ...

trematodes Trematoda is a class of flatworms known as trematodes, and commonly as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is a moll ...

, synonymous to Echinostomida. They belong to the

Digenea Digenea (Gr. ''Dis'' – double, ''Genos'' – race) is a class of trematodes in the Platyhelminthes phylum, consisting of parasitic flatworms (known as ''flukes'') with a syncytial tegument and, usually, two suckers, one ventral and one or ...

, a large subclass of flukes. This order contains relatively few significant

parasite Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted str ...

s of humans. The following

families Family (from ) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictability, structure, and safety as ...

are placed here, organised by superfamily and

suborder Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized ...

:Jones, A., Bray, R. A., & Gibson, D. I. (Eds.). (2002). ''Keys to the Trematoda'' (Vol. 1). CABI Publishing and The Natural History Museum. * Apocreadiata ** Apocreadioidea Skrjabin, 1942 *** Apocreadiidae Skrjabin, 1942 * Bivesiculata ** Bivesiculoidea *** Bivesiculidae Yamaguti, 1934 * Bucephalata ** Bucephaloidea Poche, 1907 ***

Bucephalidae Bucephalidae is a family of trematodes that parasitize fish. They lack suckers, having instead a muscular organ called a "rhynchus" at the front end which they use to attach to their hosts. The characteristics of the rhynchus are used to help d ...

Poche, 1907 *** Nuitrematidae Kurochkin, 1975 *

Echinostomata Echinostomata is a suborder of the parasitic flatworm Order (biology), order Plagiorchiida. The suborder contains numerous species that are parasitic in humans. Families All families are in the superfamily Echinostomatoidea Looss, 1902.Looss, A. ...

** Echinostomatoidea Looss, 1902 *** Caballerotrematidae Tkach, Kudlai & Kostadinova, 2016 ***

Calycodidae Calycodidae is a family of trematodes belonging to the order Plagiorchiida. Genera: * ''Calycodes'' Looss, 1901 References

Plagiorchiida Trematode families {{trematoda-stub ...

Dollfus, 1929 ***

Cyclocoelidae Cyclocoelidae is a family of trematodes in the order Plagiorchiida. Genera The genera are ordered by subfamily. *Cyclocoelinae Stossich, 1902 **'' Circumvitellatrema'' Dronen, Greiner, Ialeggio & Nolan, 2009Dronen, N. O., Greiner, E. C., Ialeggi ...

Stossich, 1902 ***

Echinochasmidae Echinochasmidae is a family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideal ...

Odhner, 1910 ***

Echinostomatidae Echinostomatidae is a family of trematodes in the order Plagiorchiida, first described in 1899.Fuhrmann, O. (1928). ''Zweite Klasse des Cladus Platyhelminthes: Trematoda''. Berlin & Leipzig: Kükenthal's Handbuch der Zoologie. Subdivisions The ...

Looss, 1899 ***

Fasciolidae Fasciolidae is a family of trematodes and includes several parasites involved in the veterinary and medical sciences, which cause the disease Fasciolosis. Fasciolidae is divided into five genera by Olson et al. 2003. The family's various species ...

Railliet, 1895 ***

Himasthlidae Himasthlidae is a family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, ...

Odhner, 1910 ***

Philophthalmidae Philophthalmidae is a family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideal ...

Looss, 1899 ***

Psilostomidae Psilostomidae is a family of trematode Trematoda is a Class (biology), class of flatworms known as trematodes, and commonly as flukes. They are obligate parasite, obligate Endoparasites, internal parasites with a complex biological life cycle ...

Looss, 1900 ***

Rhytidodidae Rhytidodidae is a family of trematode Trematoda is a Class (biology), class of flatworms known as trematodes, and commonly as flukes. They are obligate parasite, obligate Endoparasites, internal parasites with a complex biological life cycle, ...

Odhner, 1926 ***

Typhlocoelidae Typhlocoelidae is a family of trematode Trematoda is a Class (biology), class of flatworms known as trematodes, and commonly as flukes. They are obligate parasite, obligate Endoparasites, internal parasites with a complex biological life cycl ...

Harrah, 1922 * Gymnophallata ** Gymnophalloidea Odhner, 1905 *** Botulisaccidae Yamaguti, 1971 *** Fellodistomidae Nicoll, 1909 *** Gymnophallidae Odhner, 1905 *** Tandanicolidae Johnston, 1927 * Haploporata ** Haploporoidea Nicoll, 1914 *** Atractotrematidae Yamaguti, 1939 *** Haploporidae Nicoll, 1914 * Haplosplanchnata ** Haplosplanchnoidea Poche, 1925 *** Haplosplanchnidae Poche, 1926 * Hemiurata ** Azygioidea Lühe, 1909 *** Azygiidae Lühe, 1909 ** Hemiuroidea Looss, 1899 *** Accacoeliidae Odhner, 1911 *** Bathycotylidae Dollfus, 1932 ***

Derogenidae Derogenidae is a family of trematode Trematoda is a Class (biology), class of flatworms known as trematodes, and commonly as flukes. They are obligate parasite, obligate Endoparasites, internal parasites with a complex biological life cycle, ...

Nicoll, 1910 *** Dictysarcidae Skrjabin & Guschanskaja, 1955 *** Didymozoidae Monticelli, 1888 *** Gonocercidae Skrjabin & Guschanskaja, 1955 *** Hemiuridae Looss, 1899 *** Hirudinellidae Dollfus, 1932 *** Isoparorchiidae Travassos, 1922 *** Lecithasteridae Odhner, 1905 *** Ptychogonimidae Dollfus, 1937 ***

Sclerodistomidae Sclerodistomidae is a family of trematodes belonging to the order Plagiorchiida. Genera: * ''Eurycoelum'' Brock, 1886 * ''Kenmackenzia'' Gibson, 1983 * ''Prosogonotrema'' Vigueras, 1940 * ''Prosorchiopsis'' Robert-Philippe Dollfus, Dollfus, 1947 ...

Odhner, 1927 *** Sclerodistomoididae Gibson & Bray, 1979 *** Syncoeliidae Looss, 1899 * Heronimata ** Heronimoidea Ward, 1918 *** Heronimidae Ward, 1918 * Lepocreadiata ** Lepocreadioidea Odhner, 1905 *** Aephnidiogenidae Yamaguti, 1934 *** Enenteridae Yamaguti, 1958 *** Gorgocephalidae Manter, 1966 *** Gyliauchenidae Fukui, 1929 *** Lepidapedidae Yamaguti, 1958 *** Lepocreadiidae Odhner, 1905 *** Lepocreadioidea incertae sedis *** Liliatrematidae Gubanov, 1953 * Monorchiata ** Monorchioidea Odhner, 1911 *** Deropristidae Cable & Hunninen, 1942 *** Lissorchiidae Magath, 1917 *** Monorchiidae Odhner, 1911 * Opisthorchiata ** Opisthorchioidea Braun, 1901 *** Cryptogonimidae Ward, 1917 ***

Heterophyidae Heterophyidae is a family of intestinal trematodes in the order Plagiorchiida. Description: " Tegument covered by spines. Oral sucker not armed or armed by circumoral spines. Pharynx presented. Genital synus presented. Ventral and genital s ...

Leiper, 1909 *** Opisthorchiidae Looss, 1899 * Pronocephalata ** Paramphistomoidea Fischoeder, 1901 *** Cladorchiidae Fischoeder, 1901 *** Mesometridae Poche, 1926 *** Microscaphidiidae Looss, 1900 *** Paramphistomidae Fischoeder, 1901 ** Pronocephaloidea Looss, 1899 *** Labicolidae Blair, 1979 *** Notocotylidae Lühe, 1909 *** Nudacotylidae Barker, 1916 *** Opisthotrematidae Poche, 1926 *** Pronocephalidae Looss, 1899 *** Rhabdiopoeidae Poche, 1926 * Transversotremata ** Transversotrematoidea Witenberg, 1944 *** Transversotrematidae Witenberg, 1944 * Xiphidiata ** Brachycladioidea Odhner, 1905 *** Acanthocolpidae Lühe, 1906 *** Brachycladiidae Odhner, 1905 ** Gorgoderoidea Looss, 1901 *** Allocreadiidae Looss, 1902 *** Anchitrematidae Mehra, 1935 *** Braunotrematidae Yamaguti, 1958 *** Callodistomidae Odhner, 1910 *** Collyriclidae Ward, 1917 *** Dicrocoeliidae Looss, 1899 *** Encyclometridae Mehra, 1931 *** Gorgoderidae Looss, 1899 *** Mesocoeliidae Faust, 1924 *** Orchipedidae Skrjabin, 1913 ** Microphalloidea Ward, 1901 *** Diplangidae Yamaguti, 1971 ***

Eucotylidae Eucotylidae is a family of trematodes belonging to the order Plagiorchiida Plagiorchiida is a large order of trematodes, synonymous to Echinostomida. They belong to the Digenea, a large subclass of flukes. This order contains relatively f ...

Skrjabin, 1924 *** Exotidendriidae Mehra, 1935 *** Faustulidae Poche, 1926 *** Lecithodendriidae Lühe, 1901 *** Microphallidae Ward, 1901 *** Pachypsolidae Yamaguti, 1958 *** Phaneropsolidae Mehra, 1935 *** Pleurogenidae Looss, 1899 *** Prosthogonimidae Lühe, 1909 *** Renicolidae Dollfus, 1939 *** Zoogonidae Odhner, 1902 ** Opecoelioidea Ozaki, 1925 *** Batrachotrematidae Dollfus & Williams, 1966 ***

Opecoelidae Opecoelidae is a family of trematodes. It is the largest digenean family with over 90 genera and nearly 900 species, almost solely found in marine and freshwater teleost fishes.Bray, Rodney A., Cribb, Thomas H., Littlewood, D. Timothy J. & Waesch ...

Ozaki, 1925 *** Zdzitowieckitrema Sokolov, Lebedeva, Gordeev & Khasanov, 2019 ** Plagiorchioidea Lühe, 1901 *** Auridistomidae Lühe, 1901 *** Brachycoeliidae Looss, 1899 *** Cephalogonimidae Looss, 1899 ***

Choanocotylidae Choanocotylidae is a family of trematodes belonging to the order Plagiorchiida Plagiorchiida is a large order of trematodes, synonymous to Echinostomida. They belong to the Digenea, a large subclass of flukes. This order contains relative ...

Jue Sue & Platt, 1998 *** Echinoporidae Krasnolobova & Timofeeva, 1965 *** Leptophallidae Dayal, 1938 *** Macroderoididae McMullen, 1937 *** Meristocotylidae Fischthal & Kuntz, 1981 *** Ocadiatrematidae Fischthal & Kuntz, 1981 *** Orientocreadiidae Yamaguti, 1958 *** Plagiorchiidae Lühe, 1901 *** Styphlotrematidae Baer, 1924 *** Telorchiidae Looss, 1899 *** Thrinascotrematidae Jue Sue & Platt, 1999 ** Troglotrematoidea Odhner, 1914 *** Paragonimidae Dollfus, 1939 *** Troglotrematidae Odhner, 1914

References

{{Authority control Platyhelminthes orders