Palaeoheterodonta
Subclass of bivalves / From Wikipedia, the free encyclopedia
Palaeoheterodonta is a subterclass of bivalve molluscs.[1][2] It contains the extant orders Unionida (freshwater mussels) and Trigoniida. They are distinguished by having the two halves of the shell be of equal size and shape, but by having the hinge teeth be in a single row, rather than separated into two groups, as they are in the clams and cockles.[3]
Quick Facts Scientific classification, Orders ...
Palaeoheterodonta | |
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Anodonta anatina | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Subclass: | Autobranchia |
Infraclass: | Heteroconchia |
Subterclass: | Palaeoheterodonta Newell, 1965 |
Orders | |
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