Palaeosoma is an extinct genus of archipolypodan millipedes from the upper Carboniferous of England and Poland. Individuals grew to nearly long and possessed defensive glands (ozopores) located on small raised nodes on the outer edges of the upper surface of each body segment. Species of Palaeosoma were once considered members of the family Euphoberiidae, which contains species with prominent spines, but are now classified in their own family (Paleosomatidae) and own order (Palaeosomatida), as they lack spines and have a combination of features not seen in other Paleozoic millipedes.Hannibal, J. (2005) A new occurrence of the millipede Palaeosoma (Archipolypoda) in the Carboniferous of Silesia, Poland, and its implications for the distribution of millipede genera in the tropics of Euroamerica during the Pennsylvanian. Geological Society of America Abstracts with Programs.
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