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nountiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell
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Definition that contains ostracod
- ordovician from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds
- ordovician period from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds
- subclass entomostraca in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use
- entomostraca in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use