Back قديمة الأجنحة Arabic قديمة الاجنحه ARZ Palaeoptera AST Qədimqanadlılar Azerbaijani Paleòpters Catalan Palaeoptera Spanish Palaeoptera Basque دیرینهبالان Persian Palaeoptera French Paleópteros Galician
| Palaeoptera Temporal range: Carboniferous - present
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| The Green Drake (Ephemera danica), a mayfly (Ephemeroptera: Ephemeridae) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Subclass: | Pterygota |
| Division: | Palaeoptera Martynov, 1923 |
| Superorders | |
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The name Palaeoptera (from Greek παλαιός (palaiós 'old') + πτερόν (pterón 'wing')) has been traditionally applied to those ancestral groups of winged insects (most of them extinct) that lacked the ability to fold the wings back over the abdomen as characterizes the Neoptera. The Diaphanopterodea, which are palaeopteran insects, had independently and uniquely evolved a different wing-folding mechanism. Both mayflies and dragonflies lack any of the smell centers in their brain found in Neoptera.[2]
- ^ Called Odonatoidea in some treatments, e.g. Trueman & Rowe (2008)
- ^ Akpan, Nsikan (21 March 2014). "Dragonflies Lack 'Smell Center,' but Can Still Smell". Science Magazine. Retrieved 4 May 2021.
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