''Permothrips'' is an extinct genus of
thrips
Thrips (order Thysanoptera) are minute (mostly long or less), slender insects with fringed wings and unique asymmetrical mouthparts. Different thrips species feed mostly on plants by puncturing and sucking up the contents, although a few are ...
from the
Archescytinidae
Archescytinidae is an extinct family of fungus-feeding thrips belonging to the order Thysanoptera that was first defined by Robert John Tillyard in 1926.Robert John Tillyard, Tillyard, R. J. (1926). ''Kansas Permian Insects, Part 9: The Order Hemi ...
family that is notable for being one of the oldest records of thrips to date. The type species (''P. longipennis'') was described by A. V. Martynov in 1935 on the basis of PIN 2506/4, a single
exoskeleton
An exoskeleton (from Greek ''éxō'' "outer" and ''skeletós'' "skeleton") is an external skeleton that supports and protects an animal's body, in contrast to an internal skeleton ( endoskeleton) in for example, a human. In usage, some of the ...
found in
Sedy,
Russia
Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...
.
[A. V. Martynov. (1935). A find of Thysanoptera in the Permian deposits. ''Comptes Rendus (Doklady) de l'Académie des Sciences de l'URSS'' 3(7):333-336] It was probably a fungus feeding ancestor of the
Mesozoic
The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Creta ...
thrips.
References
Prehistoric insect genera
Thrips
Fossil taxa described in 1935
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