Authors Year Title
Crick 1899 On some new or little-known Goniatites from the Carboniferous limestone of Ireland.
The Annals and Magazine of Natural History,  (7) 3: 429-454; 15 fig., London.
Foord 1903 Monograph of the Carboniferous Cephalopoda of Ireland, Part V, Containing the families Glyphioceratidae (concluded) and          Prolecanitidae, with title-page and index.
Palaeontolographical Society, 57: 147-234, pl.40-49; London.