NOMEN: Monomerosomata Leach 1815 [W.E. Leach. XXXI. A tabular view of the external characters of four classes of animals, which Linne arranged under Insecta; with the distribution of the genera composing three of these classes into orders, &c and descriptions of several new genera and species. // The Transactions of the Linnean Society of London, 1815, 11: 306–400.]
ORIGINAL LISTED MEMBERSHIP (Leach 1815): Trombidium + Ocypete + Erythraeus + Gamasus + Oribata + Acarus + Argas + Ixodes + Uropoda + Cheyletus + Smaris + Bdella + Sarcoptes + Eylais + Hydrachna + Limnochares
JUNIOR CIRCUMSCRIPTIONAL SYNONYMS:
= Holetria Rafinesque 1815
= Phthiridia Rafinesque 1815
= Sympagisoma Billberg 1820
= Hologastres Duges 1834
= Sphaeracara Haeckel 1889
= Rhynchostomi Lankester 1910
TYPIFIED NAME IN BASIC FORMAT: Acarus/fg
TYPIFIED NAMES IN USE:
MODERN
STATUS: 
the valid, the
oldest name of a generally accepted, holophyletic taxon.