Eodermaptera is an extinct suborder of earwigs known from the Middle Jurassic to Mid Cretaceous. Defining characteristics include " tarsi three-segmented,

tegmina A tegmen (plural: ''tegmina'') designates the modified leathery front wing on an insect particularly in the orders Dermaptera ( earwigs), Orthoptera (grasshoppers, crickets and similar families), Mantodea (praying mantis), Phasmatodea (stick an ...

retain venation, 8th and 9th abdominal

tergite A ''tergum'' (Latin for "the back"; plural ''terga'', associated adjective tergal) is the dorsal ('upper') portion of an arthropod segment other than the head. The anterior edge is called the 'base' and posterior edge is called the 'apex' or 'mar ...

in females are narrowed, but separate from 10th tergite and not covered by 7th tergite and exposed

ovipositor The ovipositor is a tube-like organ used by some animals, especially insects, for the laying of eggs. In insects, an ovipositor consists of a maximum of three pairs of appendages. The details and morphology of the ovipositor vary, but typical ...

" They are considered to be more closely related to

Neodermaptera Neodermaptera, sometimes called Catadermaptera,BioLib.cz
suborder Catadermaptera Steinmann, 1986 (retrieved 16 Se ...

than the more basal

Archidermaptera Archidermaptera is an extinct suborder of earwigs in the order Dermaptera. It is one of two extinct suborders of earwigs, and contains two families (Protodiplatyidae and Dermapteridae) known only from Late Triassic to Early Cretaceous fossils.Fa ...

Systematics

* Family Bellodermatidae Zhao, Shih & Ren, 2010 ** †'' Belloderma'' Zhao, Shih & Ren, 2010

Daohugou The Haifanggou Formation (), also known as the Jiulongshan Formation (), is a fossil-bearing rock deposit located near Daohugou () village of Ningcheng County, in Inner Mongolia, northeastern China. The formation consists of coarse conglomerates ...

, China, Middle Jurassic (

Callovian In the geologic timescale, the Callovian is an age and stage in the Middle Jurassic, lasting between 166.1 ± 4.0 Ma (million years ago) and 163.5 ± 4.0 Ma. It is the last stage of the Middle Jurassic, following the Bathonian and preceding the ...

) * †'' Archaeosoma'' Zhang 1994

Laiyang Formation Laiyang city () is a county-level city within Yantai bordering Qingdao, located in the middle of the Shandong Peninsula, in Shandong province, China. The majority (70%) of its population are farmers and it is famous for producing the Laiyang pe ...

, China, Early Cretaceous (

Aptian The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), a ...

) * Superfamily Semenovioloidea Vishnyakova 1980 ** Family

Turanodermatidae Turanodermatidae is an extinct family of earwigs in the order Dermaptera Earwigs make up the insect order Dermaptera. With about 2,000 species in 12 families, they are one of the smaller insect orders. Earwigs have characteristic cerci, ...

Engel 2003 *** †'' Turanoderma'' Vishnyakova 1980

Karabastau Formation The Karabastau Formation ( kk, Qarabastaý svıtasy) is a geological formation and lagerstätte in the Karatau Mountains of southern Kazakhstan whose strata date to the Middle to Late Jurassic. It is an important locality for insect fossils that ...

, Kazakhstan, Middle-Late Jurassic (Callovian/ Oxfordian) ** Family Semenoviolidae Vishnyakova 1980 *** †'' Semenovioloides'' Vishnyakova 1980 Karabastau Formation, Kazakhstan, Callovian/Oxfordian ***†'' Aglyptoderma'' Xiong et al, 2021 Jiulongshan Formation, China, Callovian

References

Earwigs Insect suborders Prehistoric insect taxa {{earwig-stub