Brachiopods from the Upper Ardmillan succession (Ordovician) of the Girvan district, Scotland. Palaeontographical Society Monographs (London), 136(565)(i) 1984: 1-78. 52 [Zoological Record Volume 121]
Brachiopods from the Upper Ardmillan Succession (Ordovician) of the Girvan district, Scotland. Palaeontographical Society Monographs (London), 136565(1) 1984: 1-94. 52 [Zoological Record Volume 127]