1957  Bollandites cf. B. sulcatum.-Gordon: 38, pl.4 fig.17-
           19, textfig.14A,B.
     1960  Bollandites of the castletonense group.-Butcher &
           Hodson: 76, pl.18 fig.7.
?    1997  Bollandites (?) sp.1 Korn: 40, text-fig.27.