Arcugnathus Cooper & Sloss, 1943 † (original description)
Caninostrotion Easton, 1943 † (original description)
Devonoproductus Stainbrook, 1943 † (original description)
Discocrinus Peck, 1943 † (original description)
Eosyringothyris Stainbrook, 1943 † (original description)
Hallaspis Raasch & Lochman, 1943 † (original description)
Leptochirognathus Branson & Mehl, 1943 † (original description)
Levisaspis Rasetti, 1943 † (original description)
Loganopeltis Rasetti, 1943 † (original description)
Nodoplanulis Hussey, 1943 † (original description)
Orthogonocrinus Peck, 1943 † (original description)
Paranonion Logue & Haas, 1943 accepted as Eponidella Cushman & Hedberg, 1935 (original description)
Plotocrinus Peck, 1943 † (original description)
Poecilocrinus Peck, 1943 † (original description)
Triceracrinus Bramlette, 1943 † (original description)
Washitella Tappan, 1943 † (original description)