1845  Bellerophon micromphalus Morris, in Strezelecki: 288, pl.18 fig.7 [teste Foord & Crick].
     1847  Bellerophon micromphalus.-M'Coy: 308.
     1877  Goniatites micromphalus.-de Koninck: 320, pl.24 fig.5.
     1890  Goniatites micromphalus.-Foord: 104, pl.5 fig.10, 10a.
     1894  Goniatites (Prolecanites ?) micromphalus.-Etheridge: 36, pl.7 fig.9-14.
     1897  Agathiceras ? micromphalum.-Foord & Crick: 271,  fig.132.

Suture line incomplete, species apparently not recognizable; provenance unknown.