However, millipedes and woodlice are not closely related (belonging to the subphyla Myriapoda and Crustacea, respectively); rather, this is a case of convergent evolution.

[4] The order Glomerida is predominantly found in the Northern Hemisphere and includes species such as Glomeris marginata, the common European pill millipede.

[3] Glomeridans reach maximum lengths of 20 mm (0.79 in), and eyes, if present, are in a single row of ocelli.

[8] The order Sphaerotheriida is a Gondwana-distribution taxon, with around 350 species in southern Africa, Madagascar,[9] Australasia[10] and South East Asia.

[5] Oniscomorpha also includes the extinct order Amynilyspedida from the upper Carboniferous of North America and Europe.