Insect
Order Odonata comprise the Dragonflies (suborder anisotera) and
damselflies (suborder zygoptera), and like cockroaches is one
of the oldest types of insects. They appeared in the Devonian
during the Paleozoic,
a time when their distant cousins, the trilobites, were still
abundant. This ancient, fixed-wing design apparently is a good
one, given that there are some 5500 extant species known of Odonata.
Dragonfly
and Damselfly Fossils |
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