The Genus Oldhamia (Forbes): Its Character, Probable Affinities, Modes of Occurrence, and a Description of the Nature of the Localities in Which It Occurs in the Cambrian Rocks of Wicklow and Dublin
John Robert Kinahan. "The Genus Oldhamia (Forbes): Its Character, Probable Affinities, Modes of Occurrence, and a Description of the Nature of the Localities in Which It Occurs in the Cambrian Rocks of Wicklow and Dublin." Transactions of the Royal Irish Academy (1856) 547