Acanthocorallium Haeckel, 1887 (extant flag source)
Acanthocoronium Haeckel, 1887 (extant flag source)
Acanthocorythium Haeckel, 1887 (extant flag source)
Acanthocyrtis Haeckel, 1887 accepted as Phormostichoartus Campbell, 1951 (extant flag source)
Acanthocystis Haeckel, 1887 (extant flag source)
Acanthometrella Haeckel, 1887 (extant flag source)
Acanthonarium Haeckel, 1887 (extant flag source)
Acanthonidium Haeckel, 1887 (extant flag source)
Acontasparium Haeckel, 1887 (extant flag source)
Acontaspidium Haeckel, 1887 (extant flag source)
Acostaurus Haeckel, 1887 (extant flag source)
Acromelissa Haeckel, 1887 (extant flag source)
Actidiscus Haeckel, 1887 (extant flag source)
Actilarcus Haeckel, 1887 (extant flag source)
Actinelarium Haeckel, 1887 (extant flag source)
Actinelidium Haeckel, 1887 (extant flag source)
Actinelonium Haeckel, 1887 (extant flag source)
Actinommantha Haeckel, 1887 (extant flag source)
Actinommetta Haeckel, 1887 (extant flag source)
Actinommilla Haeckel, 1887 (extant flag source)
Actinommura Haeckel, 1887 (extant flag source)
Actinopyramis Haeckel, 1887 (extant flag source)
Actiprunum Haeckel, 1887 (extant flag source)
Alacorys Haeckel, 1887 (extant flag source)
Amphibelithium Haeckel, 1887 (extant flag source)
Amphibelonium Haeckel, 1887 (extant flag source)
Amphibrachella Haeckel, 1887 (extant flag source)
Amphibrachidium Haeckel, 1887 (extant flag source)
Amphibrachoma Haeckel, 1887 (extant flag source)
Amphibrachura Haeckel, 1887 (extant flag source)
Amphicraspedina Haeckel, 1887 (extant flag source)
Amphicraspedon Haeckel, 1887 (extant flag source)
Amphicraspedula Haeckel, 1887 (extant flag source)
Amphiloncharium Haeckel, 1887 (extant flag source)
Amphilonchidium Haeckel, 1887 (extant flag source)
Amphipylissa Haeckel, 1887 (extant flag source)
Amphipylura Haeckel, 1887 (extant flag source)
Amphirrhopalium Haeckel, 1887 (extant flag source)
Amphirrhopella Haeckel, 1887 (extant flag source)
Amphirrhopoma Haeckel, 1887 (extant flag source)
Amphisphaerantha Haeckel, 1887 (extant flag source)
Amphisphaerella Haeckel, 1887 (extant flag source)
Amphisphaeridium Haeckel, 1887 (extant flag source)
Amphisphaerissa Haeckel, 1887 (extant flag source)
Amphisphaeromma Haeckel, 1887 (extant flag source)
Amphispyridium Haeckel, 1887 (extant flag source)
Amphispyrium Haeckel, 1887 (extant flag source)
Amphitholissa Haeckel, 1887 (extant flag source)
Amphitholonium Haeckel, 1887 (extant flag source)
Amphitholura Haeckel, 1887 (extant flag source)
Amphitholus Haeckel, 1887 (extant flag source)
Anthocyrtarium Haeckel, 1887 (extant flag source)
Anthocyrtissa Haeckel, 1887 (extant flag source)
Anthocyrtium Haeckel, 1887 (extant flag source)
Anthocyrtonium Haeckel, 1887 (extant flag source)
Anthocyrtura Haeckel, 1887 (extant flag source)
Anthocyrturium Haeckel, 1887 (extant flag source)
Anthomma Haeckel, 1887 (extant flag source)
Apocubus Haeckel, 1887 (extant flag source)
Arachnocorallium Haeckel, 1887 (extant flag source)
Arachnocoronium Haeckel, 1887 (extant flag source)
Arachnocorythium Haeckel, 1887 (extant flag source)
Arachnopila Haeckel, 1887 (extant flag source)
Arachnosphaerella Haeckel, 1887 (extant flag source)
Arachnosphaeromma Haeckel, 1887 (extant flag source)
Archicircus Haeckel, 1887 (extant flag source)
Archidiscus Haeckel, 1887 (extant flag source)
Archistephus Haeckel, 1887 (extant flag source)
Artiscium Haeckel, 1887 (extant flag source)
Artocarpium Haeckel, 1887 (extant flag source)
Artocyrtis Haeckel, 1887 (extant flag source)
Artostrobulus Haeckel, 1887 (extant flag source)
Astractinium Haeckel, 1887 (extant flag source)
Astracturium Haeckel, 1887 (extant flag source)
Astrocapsa Haeckel, 1887 (extant flag source)
Astroloncharium Haeckel, 1887 (extant flag source)
Astrolonchidium Haeckel, 1887 (extant flag source)
Astrophacetta Haeckel, 1887 (extant flag source)
Astrophacilla Haeckel, 1887 (extant flag source)
Astrophacomma Haeckel, 1887 (extant flag source)
Astrophacura Haeckel, 1887 (extant flag source)
Astrophormis Haeckel, 1887 (extant flag source)
Astrosestantha Haeckel, 1887 (extant flag source)
Astrosestilla Haeckel, 1887 (extant flag source)
Astrosestomma Haeckel, 1887 (extant flag source)
Astrosphaerella Haeckel, 1887 (extant flag source)
Astrosphaeromma Haeckel, 1887 (extant flag source)
Astrostylus Haeckel, 1887 (extant flag source)
Aulactinium Haeckel, 1887 (extant flag source)
Aulastrum Haeckel, 1887 (extant flag source)
Aulatractus Haeckel, 1887 (extant flag source)
Auloceraea Haeckel, 1887 (extant flag source)
Auloceratium Haeckel, 1887 (extant flag source)
Auloceros Haeckel, 1887 (extant flag source)
Aulodendron Haeckel, 1887 (extant flag source)
Aulodictyum Haeckel, 1887 (extant flag source)
Aulographantha Haeckel, 1887 (extant flag source)
Aulographella Haeckel, 1887 (extant flag source)
Aulographidium Haeckel, 1887 (extant flag source)
Aulographis Haeckel, 1887 (extant flag source)

 Taxonomic remark

 for Thalassoplancta Haeckel, 1862

Haeckel, 1887 writes: "The genus Thalassoplancta was founded by me in 1862 for a Radiolarian with simple hollow ... [details]