Acrothamniopsis Athanasiadis & Kraft, 1996 (original description)
Acrothamniopsis eliseae Athanasiadis & Kraft, 1996 (original description)
Antithamnion biarmatum Athanasiadis, 1996 (original description)
Antithamnion uniramosum Athanasiadis, 1996 (original description)
Antithamnionella multiramosa Athanasiadis, 1996 (original description)
Antithamnionella schneideri Athanasiadis, 1996 (original description)
Heterothamnion platythaliae Athanasiadis, 1996 (original description)
Pterothamnion latiramosum Athanasiadis, 1996 (original description)
Scageliopsis strongylekystis Athanasiadis, 1996 (original description)
Trithamnion eubryanii Athanasiadis, 1996 (original description)

Arctic for Scagelothamnion Athanasiadis, 1996 
Black Sea for Apoglossum J.Agardh, 1898 
Black Sea for Sphondylothamnion Nägeli, 1862 
Black Sea for Spyridia Harvey, 1833 
Cold Temperate Northwest Atlantic for Apoglossum J.Agardh, 1898 
Cosmopolitan (World Oceans) for Heterosiphonia Montagne, 1842 
Cosmopolitan (World Oceans) for Spyridia Harvey, 1833 
Eastern Indo-Pacific for Apoglossum J.Agardh, 1898 
Lusitanian for Apoglossum J.Agardh, 1898 
Lusitanian for Dohrniella Funk, 1922 
Lusitanian for Heterosiphonia Montagne, 1842 
Lusitanian for Sphondylothamnion Nägeli, 1862 
Lusitanian for Spyridia Harvey, 1833 
Mediterranean Sea for Apoglossum J.Agardh, 1898 
Mediterranean Sea for Dohrniella Funk, 1922 
Mediterranean Sea for Heterosiphonia Montagne, 1842 
Mediterranean Sea for Sphondylothamnion Nägeli, 1862 
Mediterranean Sea for Spyridia Harvey, 1833 
Northern European Seas for Apoglossocolax Maggs & Hommersand, 1993 
Northern European Seas for Apoglossum J.Agardh, 1898 
Northern European Seas for Heterosiphonia Montagne, 1842 
Northern European Seas for Scagelothamnion Athanasiadis, 1996 
Northern European Seas for Sphondylothamnion Nägeli, 1862 
Temperate Northern Pacific for Apoglossum J.Agardh, 1898 
Tropical Atlantic for Apoglossum J.Agardh, 1898