Ceraunocochlis deformis Erwin, 1988 † (original description)
Ceraunocochlis elongata Erwin, 1988 † (original description)
Ceraunocochlis kidderi Erwin, 1988 † (original description)
Ceraunocochlis trekensis Erwin, 1988 † (original description)
Cylindritopsis hamiltonae Erwin, 1988 † (original description)
Cylindritopsis insolitus (Chronic, 1952) † (basis of record)
Cylindritopsis spheroides Erwin, 1988 † (original description)
Ischnoptygma Erwin, 1988 † (original description)
Ischnoptygma archibaldi Erwin, 1988 † (original description)
Ischnoptygma valentinei Erwin, 1988 † (original description)
Ischnoptygmatidae Erwin, 1988 † (original description)
Labridens shupei Yochelson, 1956 † (basis of record)
Macrochilina Bayle, 1880 † accepted as Soleniscus Meek & Worthen, 1861 † (source of synonymy)
Meekospira knighti Winters, 1963 † (basis of record)
Meekospira ligoni Batten, 1985 † (basis of record)
Meekospira melanoides Batten, 1985 † (basis of record)
Meekospira mimae Erwin, 1988 † (original description)
Meekospira sulcata Batten, 1964 † (basis of record)
Metorthonema Erwin, 1988 † (original description)
Metorthonema distortum Erwin, 1988 † (original description)
Metorthonema sinistrale Erwin, 1988 † (original description)
Soleniscus diminutus Erwin, 1988 † (original description)
Soleniscus variabilis Erwin, 1988 † (original description)