The fossil insects, contrary to marine invertebrates or vertebrates, are often very well preserved and complete, allowing morphological comparisons
current forms. If however, deposits of fossil insects present are rare.
The oldest remains date from the Lower Devonian and not until the Upper Carboniferous often found in the fossil record.

Insect fossils

Libellula-doris-Fi06bLibellula doris_miocen-Italia
Libellula doris_fossil insect_Italy
Libellula doris_fossil insect_ItalyLibellula doris_fossil insect_Italy
Brachyoxyvela brevinoda-Cretaceous insect-Beipiao(Asia)Brachyoxyyela-brevinoda-Fi11b
Ephemeropsis trisetalis_cretácico-Asia
fly insect fossil, Eocene, USA
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