Palæos:		Insecta
INVERTEBRATES		Caloneurodea

Order Caloneurodea

Caloneura dawsoni, fore wing (after Carpenter, 1943)

Late Carboniferous (Moscovian) to Early Permian (Gaudalupian)

This order of ancient insects is best known from the Permian of North America and Russia, but almost certainly had a widely distribution (probably cosmopolitan). It included small to large insects, with long antennae, no pronotal lobes, slender legs, subequal membranous wings, slender abdomen, and short cerci. At least some of the species could fold their wings, and most authors associate them with the orthopteroids. However, the distinctive venation with a double stem to Rs, incompletely developed cubito-anal field, and abundant convex cross-veins, is quite different from the orthopteroid pattern, so it seems more likely that they were an independent neopterous development, possibly parallel to the Diaphanopterodea.

E. F. Reik, 1970, "Fossil History", in Insects of Australia, Melbourne University Press, p.175

Insects

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page uploaded 25 June 2002
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