NOMEN: Thysanura Leach 1815 [W.E. Leach. Entomology. – Brewster's Edinburg Encyclopedia, Ed.1, 1815, 9 (1): 57-172]

ORIGINAL LISTED MEMBERSHIP (Leach 1815): Lepisma + Machilis (= Forbicina) + Petrobius + Podura + Sminthurus (= Smyrinthus)

SENIOR CIRCUMSCRIPTIONAL SYNONYMS:

= Squamata Muller 1776
= Thysanoura Latreille 1796 (see above)
= Seticaudes Dumeril 1806
= Nematoura Dumeril 1806
JUNIOR CIRCUMSCRIPTIONAL SYNONYMS:
= Thysanuria Rafinesque 1815

= Monomorpha Lucas 1840
= Apterygogenea Brauer 1885
= Apterygota Lang 1888
= Apterota Haeckel 1896
=?Adelopteros Navas 1905
= Aptilota Lameere 1935
= Epimetabola Weber 1933

TYPIFIED NAME IN BASIC FORMAT: Lepisma/fg (incl. Podura)
TYPIFIED NAMES IN USE: 

MODERN STATUS: junior synonym of Thysanoura Lattreille 1796; belongs to a non-accepted, paraphyletic taxon (Kluge 2000), which is most known under the junior name Apterygota Lang 1888.

COMMENT. The name Thysanura is often regarded to be an emendation of the name Thysanoura (see above), with the same authorship by Latreille (while Latreille always used is as Thysanoura). The name Thysanura is widely known, but was used for different taxa – see the table below. In upper line of this table number of letters "c" corresponds to number of hundreds species in each taxon. As ca be seen, the authors who transferred the name Thysanura from one taxon to another, transferred it not to a larger, but to a smaller part of the thaxon formerly called Thysanura.

WWWWWWWWWWWWWWW	WWWWWWWWWWWWWW	cccccccccccccccccccccccccccccccccccccccc	ccccccccc	cccccc	ccccc
	circumscriptional synonym:	Collembola	Diplura	Zyg- ento- ma	Mic- roco- ry- phia
Thysanura Leach 1815	Apterygota Lang 1888	+	+	+	+
Thysanura sensu Lubbock 1873	Cinura Packard 1883	-	+	+	+
Thysanura sensu Börner 1904	Triplura Ewing 1942	-	-	+	+
Thysanura sensu Börner 1910	Zygentoma Börner 1904	-	-	+	-
Thysanura sensu Börner 1920	Microcoryphia Verhoeff 1904	-	-	-	+

w~w – included
w~w – excluded

Initially, the names Thysanoura Latreille 1796 and Thysanura Leach 1815 were attributed to an order, which united all primarily wingless Hexapoda – i.e. to a taxon, later named Apterygota. Later, for springtailes was established a separate order Collembola Lubbock 1873, and the order Thysanura sensu Lubbock 1873 began to fit the taxon Cinura. Later, for two-tailed thysanurans was established a separate order Diplura, and the order Thysanura sensu Lameere 1895 & Borner 1904 began to fit the taxon Triplura. Some modern authors use the name Thysanura in more narrow sense, understanding under it only Zygentoma, or only Microcoryphia.

Among the circumscriptional synonyms of the name Thysanura, the name Apterygota is distinctly the most known and can be used as valid one, contrary to the principle of priority.