Chilognatha

Chilognatha is a subclass of the class Diplopoda, which includes the vast majority of extant millipedes, about 12,000 species.

==Taxonomy== The classification of Chilognatha presented below is based on Shear, 2011, and Shear & Edgecombe, 2010 (extinct groups). Recent cladistic and molecular studies have challenged the traditional classification schemes above, and in particular the position of the orders Siphoniulida and Polyzoniida is not yet well established. The placement and positions of extinct groups (†) known only from fossils is tentative and not fully resolved. After each name is listed the author citation: the name of the person who coined the name or defined the group, even if not at the current rank. Subclass Chilognatha Latrielle, 1802 Order †Zosterogrammida Wilson, 2005 (Chilognatha incertae sedis) Order †Microdecemplicida? Wilson & Shear, 2000 (Originally considered as member of Arthropleuridea) Infraclass Pentazonia Brandt, 1833 Order †Amynilyspedida Hoffman, 1969 Superorder Limacomorpha Pocock, 1894 Order Glomeridesmida Cook, 1895 Superorder Oniscomorpha Pocock, 1887 Order Glomerida Brandt, 1833 Order Sphaerotheriida Brandt, 1833 Infraclass Helminthomorpha Pocock, 1887 Superorder †Archipolypoda Scudder, 1882 Order †Archidesmida Wilson & Anderson 2004 Order †Cowiedesmida Wilson & Anderson 2004 Order †Euphoberiida Hoffman, 1969 Order †Palaeosomatida Hannibal & Krzeminski, 2005 Order †Pleurojulida Schneider & Werneburg, 1998 (possibly sister to Colobognatha) Subterclass Colobognatha Brandt, 1834 Order Platydesmida Cook, 1895 Order Polyzoniida Cook, 1895 Order Siphonocryptida Cook, 1895 Order Siphonophorida Newport, 1844 Subterclass Eugnatha Attems, 1898 Superorder Juliformia Attems, 1926 Order Julida Brandt, 1833 Order Spirobolida Cook, 1895 Order Spirostreptida Brandt, 1833 Superfamily †Xyloiuloidea Cook, 1895 (Sometimes aligned with Spirobolida) Superorder Nematophora Verhoeff, 1913 Order Callipodida Pocock, 1894 Order Chordeumatida Pocock 1894 Order Stemmiulida Cook, 1895 Order Siphoniulida Cook, 1895 Superorder Merocheta Cook, 1895 Order Polydesmida Pocock, 1887