Biology:Pentazonia
| Pentazonia | |
|---|---|
| |
| Glomeris marginata, female | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Myriapoda |
| Class: | Diplopoda |
| Subclass: | Chilognatha |
| Infraclass: | Pentazonia Brandt, 1833 |
| Superorders | |
| |
| Synonyms | |
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Opisthandria Verhoeff, 1894 | |
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 median tooth, and an enlarged pygidium on the hind-most body segment.[1] Pentazonia is in the dominant millipede subclass Chilognatha which have a calcified exoskeleton and modified sperm-transferring legs in males. In contrast to the Helminthomorpha – the other Chilognathan infraclass, the sperm-transferring legs are located on posterior body segments and known as telopods. Pentazonians are relatively short-bodied, with between 13 and 21 body segments.[2] The Pentazonia contains one extinct order, Amynilyspedida, often referred to the Oniscomorpha.[3]
References
- ↑ "Putative apomorphies of millipede clades". Milli-PEET: Millipede Systematics. The Field Museum, Chicago, IL. 26 September 2006. http://fieldmuseum.org/sites/default/files/millipede_apomorphies.pdf. Retrieved 5 December 2013.
- ↑ Enghoff, Henrik (1990). "The Ground Plan of Chilognathan Millipedes (External Morphology)". in Minelli, Alessandro. Proceedings of the 7th International Congress of Myriapodology. Leiden, the Netherlands: E.J. Brill. pp. 1–22. ISBN 9789004089723. https://books.google.com/books?id=BJzFnCunVxsC&dq=Pentazonia&pg=PA1.
- ↑ Hannibal, Joseph T; Feldmann, Rodney M. (1981). "Systematics and Functional Morphology of Oniscomorph Millipedes (Arthropoda: Diplopoda) from the Carboniferous of North America". Journal of Paleontology 55 (4): 730–746.
Wikidata ☰ Q3374924 entry
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