Evidence for wing development in the Late Palaeozoic Palaeodictyoptera revisited

Rosová, Kateřina; Sinitshenkova, Nina D.; Prokop, Jakub

doi:10.1016/j.asd.2021.101061

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…nov. can be attributed to the order Palaeodictyoptera based on the form and structure of the wing pads as well as characteristic abdominal outgrowths, although the distinctive haustellate mouthparts are not preserved on any specimen (Prokop et al 25 ). Palaeodictyopteran larvae are recognizable by large keel in the costal area on the forewings and markedly pleated venation with well-developed convex precursor of vein MA 27 , 32 . Moreover, the prothorax in some palaeodictyopterans bears protruding triangular lateral lobes resembling the meso- and metathoracic wing pads, which are also present in this species.…”

Section: Resultsmentioning

confidence: 99%

Thoracic and abdominal outgrowths in early pterygotes: a clue to the common ancestor of winged insects?

Prokop,

Rosová,

Leipner

et al. 2023

Commun Biol

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One of the fundamental questions in insect evolution is the origin of their wings and primary function of ancestral wing precursors. Recent phylogenomic and comparative morphological studies broadly support a terrestrial ancestor of pterygotes, but an aquatic or semiaquatic ancestor cannot be ruled out. Here new features of the branchial system of palaeodictyopteran larvae of several different instars of Katosaxoniapteron brauneri gen. et sp. nov. (Eugereonoidea) from the late Carboniferous collected at Piesberg (Germany) are described, which consist of delicate dorsolateral and lamellate caudal abdominal gills that support an aquatic or at least semiaquatic lifestyle for these insects. Moreover, the similar form and surface microstructures on the lateral abdominal outgrowths and thoracic wing pads indicate that paired serial outgrowths on segments of both tagmata presumably functioned as ancestral type of gills resembling a protopterygote model. This is consistent with the hypothesis that the wing sheaths of later stage damselfly larvae in hypoxic conditions have a respiratory role similar to abdominal tracheal gills. Hence, the primary function and driving force for the evolution of the precursors of wing pads and their abdominal homologues could be respiration.

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Section: Resultsmentioning

confidence: 99%