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Inverts: Arthropods

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subphylum trilobita
extinct trilobites
subphylum chelicerata, class Merostomata
-1st pair of appendages= chelicerae
class: Merostomata
order: Xiphosura (horseshoe crabs)
subphylum chelicerata, class Arachnida
class: Arachnida (chelicerae may have venom)
order: Araneae (spiders)
order: Scorpionida (scorpions)
order: Opiliones (harvestmen)
order Acari: (mites and ticks)
subphylum Myriapoda
-multiple sets of legs
class: Diplopoda (millipedes)
class chilopoda (centipedes)
subphylum Crustacea
-crabs, shrimp, barnacles
subphylum Hexapoda
(insects and other taxa with 3 pairs of legs)
-class Insecta
order: Odonata (dragonflies and damselflies)
order: Othoptera (grasshoppers, katydids)
order: Hemiptera (true bugs)
order: Hymenoptera (ants, wasps, bees)
order: Coleoptera (beetles)
order: Lepidoptera (butterflies and moths)
order: Diptera (true flies)