Gemellodiscus bifurcus I. Suto, 2004 (original description)
Gemellodiscus caveanus I. Suto, 2004 (original description)
Gemellodiscus cingulus I. Suto, 2004 (original description)
Gemellodiscus cingulus var. longus I. Suto, 2004 (original description)
Gemellodiscus dicollinus I. Suto, 2004 (original description)
Gemellodiscus dimontanus I. Suto, 2004 (original description)
Gemellodiscus geminus I. Suto, 2004 (original description)
Gemellodiscus hirtus I. Suto, 2004 (original description)
Gemellodiscus incurvus (J.W. Bailey) I. Suto, 2004 accepted as
Chaetoceros incurvus var. incurvus J.W. Bailey, 1854 (new combination reference)
Gemellodiscus micronodusus I. Suto, 2004 (original description)
Gemellodiscus pliocenus (Brun) I. Suto, 2004 accepted as
Chaetoceros pliocenum Brun, 1891 (new combination reference)