| Plumalexius Temporal range:
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|---|---|
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| Plumalexius rasnitsyni holotype | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | †Plumalexiidae |
| Genus: | †Plumalexius Brothers, 2011 |
| Type species | |
| Plumalexius rasnitsyni Brothers, 2011
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| Other species | |
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Plumalexius is a genus of wasps in the extinct monotypic family Plumalexiidae, containing two species: the type species Plumalexius rasnitsyni,[1] known from the Late Cretaceous White Oaks Pit in Sayreville, New Jersey,[1] and Plumalexius ohmkuhnlei, known from the Cretaceous Burmese amber.[2]
- ^ a b Brothers, Denis J. (2011). "A new Late Cretaceous family of Hymenoptera, and phylogeny of the Plumariidae and Chrysidoidea (Aculeata)" (PDF). ZooKeys (130): 515–542. Bibcode:2011ZooK..130..515B. doi:10.3897/zookeys.130.1591. PMC 3260779. PMID 22259297.
- ^ Rasnitsyn, A. P.; Brothers, D. J. (2020). "The first plumalexiid wasp (Hymenoptera: Chrysidoidea, Plumalexiidae) from the mid-Cretaceous Burmese amber". Cretaceous Research. 115: Article 104568. Bibcode:2020CrRes.11504568R. doi:10.1016/j.cretres.2020.104568. S2CID 225629077.