Arthropods
Chelicerates (claw mouth)
Crustaceans (hard shelled)
• several pairs of • feeding pincers • no antennae
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jointed legs • hard protective outer shell • two pairs of antennae • eyes at the ends of stalks
Insects (segmented)
• • • •
three body parts six legs exoskeleton two antennae
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Myriapods (many feet)
Trilobites (three lobed) extinct
• head and long,
repeating trunk • two antennae • many legs
• three lateral body
parts • segmented thorax • tail section
Animal Classification Chart - Vertebrates