Acuticythereis Edwards, 1944 † (original description)
Angulorbis Yen, 1944 † (original description)
Calymenidius Rasetti, 1944 † (original description)
Campylocythere Edwards, 1944 (original description)
Delaria Weller, 1944 † (original description)
Glyptometopus Rasetti, 1944 † (original description)
Gutschickia Scott, 1944 † (original description)
Lamellinucula Schenck, 1944 accepted as Nucula Lamarck, 1799 (original description)
Lauzonella Rasetti, 1944 † (original description)
Litagnostus Rasetti, 1944 † (original description)
Megactenopetalus David, 1944 † (original description)
Onchopeltis Rasetti, 1944 † (original description)
Pilsbryus Yen, 1944 † (original description)
Pliophloyx Yen, 1944 † (original description)
Pseudosaukia Rasetti, 1944 † (original description)
Pseudoschistoceras Teichert, 1944 † (original description)
Quebecaspis Rasetti, 1944 † (original description)
Rotorbinella Bandy, 1944 (original description)
Stigmametopus Rasetti, 1944 † (original description)
Tehuacana Stenzel, 1944 † (original description)
Vidria Weller, 1944 † (original description)