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

Callipodida
Tetracion jonesi 1.jpg
Tetracion jonesi (Abacionidae), a species from the southern United States
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Diplopoda
Infraclass: Helminthomorpha
Order: Callipodida
Pocock, 1894
Suborders

Callipodidea
Schizopetalidea
Sinocallipodidea Burmanopetalidea

Synonyms

Lysiopetalida Chamberlin, 1943

DescriptionEdit

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]

DistributionEdit

Callipodida occurs in North America, Europe, west Asia, southern China and Southeast Asia.[4]

ClassificationEdit

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

ReferencesEdit

  1. ^ "Diagnostic features of Millipede Orders" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 25 October 2013.
  2. ^ a b Shelley, Rowland M. (1999). "Centipedes and Millipedes with Emphasis on North American Fauna". The Kansas School Naturalist. 45 (3): 1–16.
  3. ^ Stoev, P.; Sierwald, P.; Billey, A (2008). "An annotated world catalogue of the millipede order Callipodida (Arthropoda: Diplopoda)" (PDF). Zootaxa. 1706: 1–50.
  4. ^ "Biogeography of Millipede Orders" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 25 October 2013.
  5. ^ Shear, W. (2011). "Class Diplopoda de Blainville in Gervais, 1844" (PDF). In Zhang, Z.-Q. (ed.). Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness. Zootaxa. 3148. pp. 159–164. ISBN 978-1-86977-850-7.
  6. ^ Stoev, Pavel; Enghoff, Henrik (2011). "A review of the millipede genus Sinocallipus Zhang, 1993 (Diplopoda: Callipodida: Sinocallipodidae), with notes on gonopods monotony vs. peripheral diversity in millipedes". ZooKeys. 90 (0): 13–34. doi:10.3897/zookeys.90.1291. PMC 3084490. PMID 21594105.
  7. ^ Stoev, Pavel; Moritz, Leif; Wesener, Thomas (2019). "Dwarfs under dinosaur legs: a new millipede of the order Callipodida (Diplopoda) from Cretaceous amber of Burma". ZooKeys. 841: 79–96. doi:10.3897/zookeys.841.34991. PMC 6529722. PMID 31148918.

External linksEdit