† Triphora (Mastonia) cingulifera subsp. goikulensis Ladd, 1972

Triphora (Mastonia) cingulifera subsp. goikulensis Ladd, 1972: 48, pl. 12, fig. 14.

Type locality. Palau, Marls at the base of the Palau Limestone on Goikal Peninsula Babelthaup Island .

Type stratum. Late Miocene (Tertiary g).

Type material. Type material not located so far.

Distribution. Palau (Ladd 1972).

Geological age. Miocene (Ladd 1972).