Subphylum Crustacea Rank Order | ||
Similar Mictacea, Thermosbaenacea, Anaspidacea, Amphionides, Hoplocarida | ||
The order Pygocephalomorpha is an extinct group of peracarid crustaceans. It contains five families, and one genus incertae sedis.
Pygocephalomorpha were abundant from the Carboniferous until their extinction in the Permian.
References
Pygocephalomorpha Wikipedia(Text) CC BY-SA