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Image of <i>Unio delphinus</i>
Unresolved name

Palaeoheterodonta

Heliana Teixeira   cc-by-nc-4.0

Palaeoheterodonta is a subclass of . There are 510 species of Palaeoheterodonta, in 142 genera and 8 families.

Palaeoheterodonta includes 2 children: