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water flea

Sida crystallina

Classification

Family
Sididae

The Diplostraca or Cladocera, commonly known as water fleas, is a superorder of small, mostly freshwater crustaceans, most of which feed on microscopic chunks of organic matter, though some forms are predatory. Over 1000 species have been recognised so far, with many more undescribed. The oldest unequivocal fossils of diplostracans date to the Jurassic, though their modern morphology suggests that they originated substantially earlier, during the Paleozoic.

Distribution

Bram Koese · CC BY
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Countries in the Picchu catalog
France · 2United Kingdom · 2Germany · 1Netherlands · 1