J. M.  Dickins, ?The Permian leiopteriid Merismopteria and the origin of the Pteriidae?, Palaeontology, vol. 3, pp. 387-391, 1960.

J. M.  Dickins, ?The Permian leiopteriid Merismopteria and the origin of the Pteriidae?, Palaeontology, vol. 3, pp. 387-391, 1960.