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Paragonimus westermanii.jpg
Paragonimus westermanii
(Troglotremata: Paragonimidae)
Scientific classification e
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Trematoda
Subclass: Digenea
Order: Plagiorchiida

The Plagiorchiida are a large order of flatworms (synonym is Echinostomida). They belong to the Digenea, a large subclass of flukes. This order contains relatively few significant parasites of humans.[1]

The following suborders are placed here:[2]

  • Apocreadiata
  • Bivesiculata
  • Bucephalata
  • Echinostomata
  • Haplosplanchnata
  • Hemiurata
  • Heronimata
  • Lepocreadiata
  • Monorchiata
  • Opisthorchiata
  • Pronocephalata
  • Transversotremata
  • Xiphidiata
  • Zoogonata


  1. ^ Gibson (2001). "European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification". Collection Patrimoines Naturels. 50: 136–142. 
  2. ^ "WoRMS - World Register of Marine Species - Plagiorchiida". Retrieved 2015-11-08.