Author: Sues, H.-D., & Galton, P., 1982.:
Title: The systematic position of Stelopelix valdensis (Reptilia: Ornithischia) from the Wealden of Northwest Germany.
Description: Palaeontogr., Abt. A, 178(4-6): pp. 183-190, 3 figs., 1 tab., refs. 4to. Plain new wrappers.

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