Author: YOUNG, J. & J. YOUNG
Title: New carboniferous Polyzoa /&/ On Polaecoryne and other polyzoal appendages.
Description: 1874. Quart. J. Geol. Soc. XXX; pp. 681-689, 4 plts. h.t. Plain new wrps. stapled, p. 689 (descriptionof 2 plts.) in photocopy.

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