Taylor R.S., S. Yan-Bin, and F. R. Schram. 1998. New pygocephalomorph crustaceans from the Permian of China and their phylogenetic relationships. Palaeontology 41(5):815-834.
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Taylor, R. S.; Yan-Bin, S.; Schram, F. R.
1998
New pygocephalomorph crustaceans from the Permian of China and their phylogenetic relationships