Order Testudines Wagler, 1830 - turtles Suborder Cryptodira Cope, 1868 Superfamily Trionychoidea Gray, 1825 Family Trionychidae Gray, 1825 - softshell turtles Subfamily Cyclanorbinae Lydekker, 1889 Genus Cycloderma Peters, 1854 Cycloderma frenatum Peters, 1854 - Zambezi flapshell turtle