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 Zosterogrammidae is an extinct family of millipedes containing three genera, each with a single species. Fossils are known from the Czech Republic, Scotland, and the USA. Zosterogrammidae constitutes the sole family of the order Zosterogrammida ...

Wilson, 2005 (Chilognatha '' incertae sedis'') ** Infraclass

Pentazonia Pentazonia is a taxonomic infraclass of millipedes containing the pill-millipedes (Oniscomorpha) which can roll into a ball and the order Glomeridesmida which cannot. Defining traits (apomorphies) include divided sternites, a labrum with single ...

Brandt, 1833 *** Order † Amynilyspedida Hoffman, 1969 *** Superorder

Limacomorpha Glomeridesmida is an order of millipedes in the infraclass Pentazonia containing 2 families and at least 31 species. Glomeridesmida is the only living order of the superorder Limacomorpha. Glomeridesmidans are small (less than ) and somewhat f ...

Pocock, 1894 **** Order Glomeridesmida Cook, 1895 *** Superorder Oniscomorpha Pocock, 1887 **** Order

Glomerida Glomerida is an order of pill-millipedes found primarily in the Northern Hemisphere. They superficially resemble pill-bugs or woodlice, and can enroll into a protective ball. They have twelve body segments, 17 to 19 pairs of legs, and males hav ...

Brandt, 1833 **** Order Sphaerotheriida Brandt, 1833 ** Infraclass

Helminthomorpha 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 (extin ...

Pocock, 1887 *** Superorder † Archipolypoda Scudder, 1882 **** Order † Archidesmida Wilson & Anderson 2004 **** Order † Cowiedesmida Wilson & Anderson 2004 **** Order †

Euphoberiida Euphoberiidae is an extinct family of archipolypodan millipedes known from the Upper Pennsylvanian of Europe and North America. The family includes relatively large millipedes measuring up to long bearing distinctive spines and were the dominan ...

Hoffman, 1969 **** Order †

Palaeosomatida ''Palaeosoma'' is an extinct genus of archipolypodan millipedes from the upper Carboniferous of England and Poland. Individuals grew to nearly long and possessed defensive glands ( ozopores) located on small raised nodes on the outer edges of ...

Hannibal & Krzeminski, 2005 *** Order †

Pleurojulida Pleurojulidae is an extinct family of millipedes known from the Westphalian stage of the upper Carboniferous that are distinct enough to be placed in their own order, Pleurojulida. Fossil pleurojulids up to 10 centimeters long are known from Eur ...

Schneider & Werneburg, 1998 (possibly sister to Colobognatha) *** Subterclass

Colobognatha Colobognatha is a clade (formally considered a subterclass) of helminthomorph millipedes containing four orders: Platydesmida, Polyzoniida, Siphonocryptida, and Siphonophorida. Description The Colobognatha are united by several shared traits ( ...

Brandt, 1834 **** Order

Platydesmida Platydesmida (Greek for ''platy'' "flat" and ''desmos'' "bond") is an order of millipedes containing two families and over 60 species. Some species practice paternal care, in which males guard the eggs. Description Platydesmidans have a flatte ...

Cook, 1895 **** Order Polyzoniida Cook, 1895 **** Order

Siphonocryptida Siphonocryptida is an order of millipedes, comprising the sole family Siphonocryptidae. With only seven described species, the Siphonocryptida is the second smallest millipede order, surpassed only by Siphoniulida, with two species. Classifica ...

Cook, 1895 **** Order

Siphonophorida Siphonophorida (Greek language, Greek for "tube bearer") is an order of millipedes containing two families and over 100 species. Description Millipedes in the order Siphonophorida are long and worm-like, reaching up to in length and up to 190 ...

Newport, 1844 *** Subterclass Eugnatha Attems, 1898 **** Superorder Juliformia Attems, 1926 ***** Order Julida Brandt, 1833 ***** Order

Spirobolida Spirobolida is an order of "round-backed" millipedes containing approximately 500 species in 12 families. Its members are distinguished by the presence of a "pronounced suture that runs "vertically down the front of the head". Most of the spec ...

Cook, 1895 ***** Order

Spirostreptida Spirostreptida is an order (biology), order of long, cylindrical millipedes. There are approximately 1000 described species, making Spirostreptida the third largest order of millipedes after Polydesmida and Chordeumatida. Description Spirostrept ...

Brandt, 1833 *****Superfamily † Xyloiuloidea Cook, 1895 (Sometimes aligned with Spirobolida) **** Superorder Nematophora Verhoeff, 1913 ***** Order Callipodida Pocock, 1894 ***** Order Chordeumatida Pocock 1894 ***** Order

Stemmiulida Stemmiulida is an order of millipedes consisting of approximately 130 species, reaching up to 50 mm in length. It contains a single family, Stemmiulidae. Description Stemmiulids are small to medium sized millipedes, reaching a maximum len ...

Cook, 1895 ***** Order Siphoniulida Cook, 1895 **** Superorder Merocheta Cook, 1895 ***** Order Polydesmida Pocock, 1887

References

{{Taxonbar, from=Q19891064 Millipedes Arthropod subclasses