| Protorthoptera Temporal range: Middle Carboniferous | |
|---|---|
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| Hadentomum americanum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Cohort: | Polyneoptera |
| Order: | † Protorthoptera Handlirsch, 1906 |
| Families | |
See text | |
| Synonyms | |
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The Protorthoptera are an extinct order of Palaeozoic insects, and represent a wastebasket taxon and paraphyletic assemblage of basal neoptera [ citation needed ]. They appear during the Middle Carboniferous (late Serpukhovian or early Bashkirian), making them among the earliest known winged insects in the fossil record. Pronotal lobes may be expanded to form a shield. The group includes the ancestors of all other polyneopterous insects.
Protorthoptera [1]