Irham, M.; Schram, F.R.; Vonk, R. (2010). A new species of Pygocephalomorpha (Eumalacostraca, Peracarida) from the Leitchfield formation, Lower Carboniferous (Mississipian) of Grayson County, Kentucky, U.S.A. In: Fransen, C.H.J.M., S. De Grave & P.K.L. Ng (eds.), Studies on Malacostraca: Lipke Bijdeley Holthuis Memorial Volume.— Crustaceana Monographs. 14: 343-355.
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Irham, M.; Schram, F.R.; Vonk, R.
2010
A new species of Pygocephalomorpha (Eumalacostraca, Peracarida) from the Leitchfield formation, Lower Carboniferous (Mississipian) of Grayson County, Kentucky, U.S.A.
In: Fransen, C.H.J.M., S. De Grave & P.K.L. Ng (eds.), Studies on Malacostraca: Lipke Bijdeley Holthuis Memorial Volume.— Crustaceana Monographs