Scirtoidea

Scirtoidea is a superfamily of beetles.^[1] It is traditionally considered to consist of four families: Clambidae, Decliniidae, Eucinetidae and Scirtidae.^[2] However, genetic studies have suggested that Clambidae and Eucinetidae belong to a separate superfamily Clamboidea, which also includes Derodontidae. Scirtoidea and Clamboidea are the two earliest diverging lineages of living polyphagans.^[1]

Scirtoidea
Cyphon padi (Scirtidae)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Elateriformia
Superfamily:	Scirtoidea Fleming, 1821
Families
See text

Two extinct families have also been assigned to this group:

• † Mesocinetidae Kirejtshuk and Ponomarenko 2010 Late Jurassic-Early Cretaceous (Asia)
• † Elodophthalmidae Kirejtshuk and Azar 2008 monotypic, Lebanese amber, Barremian