Xyloiuloidea
| Xyloiuloidea Temporal range:
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| Xyloiulus mazonus | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Subphylum: | |
| Class: | Diplopoda |
| Superorder: | |
| Order: | |
| Superfamily: | †Xyloiuloidea Cook, 1895
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| Families | |
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Xyloiuloidea is an extinct superfamily of
Lower Devonian through the Upper Pennsylvanian
period in Europe and North America.
Description
Xyloiuloids are more or less cylindrical, with
body segment fused into a complete ring. Adults possess 40 to 50 body rings. The legs are no longer than half the height of the body. The body surface is marked by small parallel grooves (striations), which vary in surface coverage between xyloiuloid families.[1]
Taxonomy
Xyloiuloidea comprises four families:
- †Gaspestriidae
- †Nyraniidae
- †Plagiascetidae
- †Xyloiulidae
The taxonomic history of Xyloiuloidea begins with
juliform millipedes, a group that includes the cylindrical, fused-bodied orders Spirobolida, Spirostreptida, and Julida.[1]
References
Orders of the class Diplopoda (millipedes) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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