Author: REGNéLL, G. & C.R.C. PAUL
Title: Echinoderms from the Ordovician of the Girvan district, Scotland, with the description of two new species.
Description: 1981. Trans R. Soc. Edinburgh 72-1; pp. 49-56, 7 fig./phot. Orig. extract, stapled, very good, 4to.

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