Lepidotrichidae is a family of basal

insect Insects (from Latin ') are pancrustacean Hexapoda, hexapod invertebrates of the class (biology), class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, Thorax (ins ...

s belonging to the order

Zygentoma Zygentoma are an order in the class Insecta, and consist of about 550 known species. The Zygentoma include the so-called silverfish or fishmoths, and the firebrats. A conspicuous feature of the order are the three long caudal filaments. The tw ...

(

silverfish The silverfish (''Lepisma saccharinum'') is a species of small, primitive, wingless insect in the order Zygentoma (formerly Thysanura). Its common name derives from the insect's silvery light grey colour, combined with the fish-like appeara ...

and allies) The family contains the

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

'' Lepidotrix'', known from specimens preserved in

Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "da ...

aged European amber. The

extant Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extin ...

genus '' Tricholepidion'', which contains a single species, '' Tricholepidion gertschi'' from western North America, has also been typically considered a member of the family. However, some more recent research has suggested that the two genera are not particularly closely related, and ''Tricholepidion'' should instead be assigned to its own family Tricholepidiidae.

References

External links

Lepidotrichidae.
Integrated Taxonomic Information System (ITIS). Insect families Taxa named by Filippo Silvestri {{Thysanura-stub