Absonodaphoenus Olsen, 1958 † accepted as Pseudarctos Schlosser, 1899 † (original description)
Aemulophyllum Oliver, 1958 † (original description)
Bendites Miller & Furnish, 1958 † (original description)
Bolbineossia Kesling, Heany, Kauffman & Oden, 1958 † (original description)
Burnetiella Lochman, 1958 † (original description)
Camarocarcinus Holland & Cvancara, 1958 † (original description)
Chazyoceras Flower, 1958 † (original description)
Colobomycter Vaughn, 1958 † (original description)
Culunana Lintz, 1958 † (original description)
Dolichoscapha Kesling & Ehlers, 1958 † (original description)
Elkoceras Lintz & Lohr, 1958 † (original description)
Emmonsoceras Flower, 1958 † (original description)
Fairliella Summerson, 1958 † accepted as Hemisphaerammina Loeblich & Tappan, 1957 (original description)
Gordonites Miller & Furnish, 1958 † (original description)
Graysonites Young, 1958 † (original description)
Hesperopherpeton Peabody, 1958 † (original description)
Mesobeloceras Glenister, 1958 † (original description)
Nigriporella Rigby, 1958 † accepted as Tubiphytes Maslov, 1956 † (original description)
Ophiuraster Miller, 1958 † accepted as Archaeophiomusium Hattin, 1967 † (original description)
Paleyoldia Lintz, 1958 † (original description)
Petropegia Summerson & Campbell, 1958 † (original description)
Prouintatherium Dorr, 1958 † (original description)
Sanjuania Amos, 1958 † (original description)
Timeischytes Ehlers & Kesling, 1958 † (original description)
Triendoceras Flower, 1958 † (original description)
Vaningenoceras Flower, 1958 † (original description)
Weikkoella Summerson, 1958 † accepted as Moellerina E.O. Ulrich, 1886 † (original description)
Xenechinus Kier, 1958 † (original description)