Definition of Arthropleura
: a genus of very large, extinct arthropods (class Arthropleuridea of the subphylum Myriapoda) that are related to the centipedes and millipedes, that lived during the Carboniferous period, and that are known to have reached a length of over 6.5 feet (2.0 meters) long
- Despite dry conditions, there must have been sufficient vegetation to support giant detritivores such as Arthropleura, whose existence is indicated by common trackways on river channel levees.
- —H. J. Falcon-Lang et al., Journal of the Geological Society, May 2006
