Amaurotoma Knight, 1945 † (original description)
Callistadia Knight, 1945 † (original description)
Callistadia bella Knight, 1945 † (original description)
Cinclidonema Knight, 1945 † (original description)
Cinclidonema texanum Knight, 1945 † (original description)
Crenilunula Knight, 1945 † (original description)
Dictyotomaria Knight, 1945 † (original description)
Glyptotomaria Knight, 1945 † (original description)
Glyptotomaria apiarium Knight, 1945 † (original description)
Micromphalus Knight, 1945 † (original description)
Micromphalus turris Knight, 1945 † (original description)
Omphalotrochidae Knight, 1945 † (original description)
Orecopia Knight, 1945 † (original description)
Platyzona Knight, 1945 † (original description)
Portlockiella Knight, 1945 † (original description)
Portlockiella kentuckyensis Knight, 1945 † (original description)
Spiroscala Knight, 1945 † (original description)
Spiroscala pagoda Knight, 1945 † (original description)