Archaeognatha

R. G. Beutel & S. N. Gorb, 2001, Ultrastructure of attachment specializations of hexapods (Arthropoda): evolutionary patterns inferred from a revised ordinal phylogeny, J. Zool. Syst. Evol. Research 39, pp. 177-207 : 179

publication ID	https://doi.org/ 10.1046/j.1439-0469.2001.00155.x
DOI	https://doi.org/10.5281/zenodo.6279443
persistent identifier	https://treatment.plazi.org/id/0394A359-2F66-8E1F-017E-FD6FFBF8FCED
treatment provided by	PlaziZenodoSync
scientific name	Archaeognatha
status

Treatment

4 Archaeognatha View in CoL

The tarsus is three or rarely twosegmented ( Watson and Smith 1991). A welldefined, segmentlike pretarsus is not developed in archaeognathans and all following groups. The reduced pretarsus bears two simple claws. A median claw or empodium is not developed.