Antillogorgia Bayer, 1951 (original description)
Argentiproductus Cooper & Muir-Wood, 1951 † (original description)
Callispirina Cooper & Muir-Wood, 1951 † (original description)
Capillirostra Cooper & Muir-Wood, 1951 † (original description)
Corticivora Clarke, 1951 (original description)
Elinoria Cooper & Muir-Wood, 1951 † accepted as Brachythyrina Fredericks, 1929 † (original description)
Eoconcha Cooper, 1951 † (original description)
Glaukosocrinus Strimple, 1951 † (original description)
Hirsutella Cooper & Muir-Wood, 1951 † (original description)
Jordanopsylla Traub & Tipton, 1951 (original description)
Labriproductus Cooper & Muir-Wood, 1951 † (original description)
Marionites Cooper & Muir-Wood, 1951 † accepted as Multicostella Schuchert & Cooper, 1931 † (original description)
Matutella Cooper, 1951 † (original description)
Nordodiaptomus Wilson, 1951 (original description)
Nudirostra Cooper & Muir-Wood, 1951 † accepted as Leiorhynchus Hall, 1860 † (original description)
Ozarkogona Causey, 1951 (original description)
Pherusella Soule, 1951 (original description)
Phymatothyris Cooper & Muir-Wood, 1951 † (original description)
Pirgulia Cooper & Muir-Wood, 1951 † (original description)
Plectorhynchonella Cooper & Muir-Wood, 1951 † (original description)
Sphaerirhynchia Cooper & Muir-Wood, 1951 † (original description)
Spinatrypa Stainbrook, 1951 † (original description)
Springeria Bigelow & Schroeder, 1951 accepted as Anacanthobatis von Bonde & Swart, 1923 (original description)
Striispirifer Cooper & Muir-Wood, 1951 † (original description)
Sulcirostra Cooper & Muir-Wood, 1951 † (original description)
Tagapetus Ross, 1951 (original description)
Telikosocrinus Strimple, 1951 † (original description)
Texadina Abbott & Ladd, 1951 (original description)
Ustina Illg, 1951 accepted as Notopterophoroides Schellenberg, 1922 (original description)