The Branchiopoda reference article from the English Wikipedia on 24-Jul-2004
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Branchiopoda

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Branchiopods
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Branchiopoda
Orders
not necessarily a complete list:
Anostraca
Notostraca
Cladocera
Conchostraca
Branchiopoda is a group of primarily freshwater crustaceans, mostly resembling shrimp. A few are well-known, including the Artemia (brine shrimp, called Sea Monkeys® when marketed as novelties), and Daphnia, both of which are raised as aquarium food or as interesting pets in and of themselves.