Notocupes Temporal range:
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Various specimens of Notocupes from the Middle Jurassic of China and mid-Cretaceous Burmese amber | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Coleoptera |
Suborder: | Archostemata |
Family: | incertae sedis |
Genus: | †Notocupes Ponomarenko, 1964 |
Synonyms | |
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Notocupes is an extinct genus of medium-sized archostematan beetles from the Mesozoic Era of Eurasia, including over 50 described species. Historically, the genus was classified as a member of the family Ommatidae, but the presence of characters such as the horizontal mandibular cutting edge, separated procoxae and overlapping abdominal sternites indicate that the genus may have a closer affinity with the family Cupedidae.[1] Notocupes is considered to be a junior synonym of Zygadenia by Kirejtshuk (2020),[2] but other researchers suggest to reserve the genus Zygadenia as a form taxon for isolated elytra that probably belong to the genus Notocupes, while retaining Notocupes as a valid genus for complete body fossils.[3][4][5] Most species of Notocupes were described from compression fossils. An additional three species were described from Cenomanian-aged Burmese amber, which were treated as a separate genus, Echinocups, by Kirejtshuk (2020), but Li et al. (2023) consider Echinocups to be a junior synonym of Notocupes.[6] Notocupes has a flattened body, which may suggest that it occupied narrow habitats, such as living under bark. Some species had serrated/spined margins of the carapace, which may have served as a defense against predators, or served as camouflage to resemble bark.[1]
Strelnikova & Yan (2023) advise splitting up the genus Notocupes into four genera: Notocupes, Rhabdocupes, Conexicoxa and the new genus Brachilatus.[7]