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Callipodida
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Callipodida
Tetracion jonesi (Abacionidae), a species from the southern United States
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Superorder: Nematophora
Order: Callipodida
Pocock, 1894
Suborders
Synonyms

Lysiopetalida Chamberlin, 1943

Callipodida is an order of millipedes containing around 130 species, many characterized by crests or ridges.

Description

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Callipodida are long and narrow millipedes, up to 100 millimetres (3.9 in) in length with 40-60 body segments. A dorsal groove is present running down the mid-line of the body, and many species are ornamented with longitudinal crests or ridges.[1][2] Sexually mature males possess a single pair of gonopods, consisting of the modified anterior leg pair of the 7th body segment, and carried concealed within a pouch.[2][3]

Distribution

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Classification

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The living (extant) Callipodida are classified into three suborders, seven families, and approximately 130 species.[5] The genus Sinocallipus, which constitutes the suborder Sinocallipodidea, is thought to be the most primitive, and a sister group to all other callipodans.[6] A fourth, extinct, suborder was described in 2019 to accommodate Burmanopetalum inexpectatum, a 99 million-year-old specimen found in Burmese amber.[7]

Suborder Callipodidea
Suborder Schizopetalidea
Suborder Sinocallipodidea
Suborder Burmanopetalidea

References

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