Pterygota

insect subclass

Also known as: winged insect

Learn about this topic in these articles:

In insect: Insect phylogeny
…history of winged insects (Pterygota) throughout the geological periods from the Devonian to the Recent. The apterygotes, which are regarded as survivors of primitive insect stock, are omitted from the family tree. Dark lines indicate the periods during which the various orders have been found as fossils. Some lines…
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In insect: Annotated classification
Subclass Pterygota Winged or secondarily wingless; metamorphosis; adults without pregenital abdominal appendages; adult mandibles (unless greatly modified) articulating with head capsule at 2 points. Infraclass Paleoptera Mostly extinct; wings held aloft over back or extended permanently on each side of the body, unable to fold back…
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