Taxonomy
The superfamilies and families in the order Unionoida, as listed by Bieler et al (2010). The use of † indicate families and superfamilies that are extinct. Follow these links to more articles about these interesting freshwater mussels.
Unionoida
- Superfamily †Archanodontoidea (placement in Unionoida uncertain)
- Family †Archanodontidae
- Superfamily Etherioidea
- Family Etheriidae (About 4 species) (syn: Mulleriidae, Pseudomulleriidae)
- Family Iridinidae (About 30 species) (syn: Mutelidae, Pleiodontidae)
- Family Mycetopodidae (Between 40 to 50 species)
- Superfamily Hyrioidea
- Family Hyriidae (Nearly 90 species)
- Superfamily †Trigonioidoidea
- Family †Trigonioididae
- Family †Jilinoconchidae (placement uncertain)
- Family †Nakamuranaiadidae (syn:Sinonaiinae, Nippononaiidae)
- Family †Plicatounionidae
- Family †Pseudohyriidae
- Family †Sainschandiidae
- Superfamily Unionoidea
- Family Unionidae (Less than 700 species)
- Family Liaoningiidae (placement uncertain)
- Family Margaritiferidae (Presumably less than 10 species) (syn:Margaritaninae, Cumberlandiinae, Promargaritiferidae)
- Family †Sancticarolitidae
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