Classification of the suborder Laganina
Subor. Laganina Mortensen 1948
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Fm. Neolaganidae Durham 1954
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G. †Durhamella Kier 1968
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†Durhamella floridanum Clark and Twitchell 1915
†Durhamella ocalana Cooke 1942
G. †Neorumphia Durham 1954