Acanthocorys Haeckel, 1881 (original description)
Acanthocyrtis Haeckel, 1881 (original description)
Acantholonche Haeckel, 1881 (original description)
Acanthonia Haeckel, 1881 (original description)
Acontaspis Haeckel, 1881 (original description)
Acotripus Haeckel, 1881 † (original description)
Acrobotrys Haeckel, 1881 (original description)
Acrocalpis Haeckel, 1881 (original description)
Acrocorona Haeckel, 1881 (original description)
Acrocoronis Haeckel, 1881 (original description)
Acrocubus Haeckel, 1881 (original description)
Acropyramis Haeckel, 1881 (original description)
Acrosphaera Haeckel, 1881 (original description)
Acrospyris Haeckel, 1881 (original description)
Aegospyris Haeckel, 1881 (original description)
Amphactura Haeckel, 1881 (original description)
Amphibrachium Haeckel, 1881 † (original description)
Amphicraspedum Haeckel, 1881 (original description)
Amphicyclia Haeckel, 1881 (original description)
Amphilithium Haeckel, 1881 (original description)
Amphiplecta Haeckel, 1881 (original description)
Amphipyle Haeckel, 1881 (original description)
Amphipylonium Haeckel, 1881 (original description)
Amphirhopalum Haeckel, 1881 (original description)
Amphisphaera Haeckel, 1881 (original description)
Amphispyris Haeckel, 1881 (original description)
Amphistylus Haeckel, 1881 (original description)
Amphymenium Haeckel, 1881 † (original description)
Anthocorys Haeckel, 1881 (original description)
Anthospyris Haeckel, 1881 (original description)
Arachnocalpis Haeckel, 1881 (original description)
Arachnopegma Haeckel, 1881 (original description)
Arachnopilium Haeckel, 1881 (original description)
Archibursa Haeckel, 1881 (original description)
Archicapsa Haeckel, 1881 † (original description)
Archicorys Haeckel, 1881 (original description)
Archilophus Haeckel, 1881 (original description)
Archipera Haeckel, 1881 (original description)
Archiperidium Haeckel, 1881 (original description)
Archiphatna Haeckel, 1881 (original description)
Archiphormis Haeckel, 1881 (original description)
Archipilium Haeckel, 1881 (original description)
Archiscenium Haeckel, 1881 (original description)
Artidium Haeckel, 1881 (original description)
Artiscus Haeckel, 1881 (original description)
Artocapsa Haeckel, 1881 (original description)
Artocorys Haeckel, 1881 (original description)
Artopera Haeckel, 1881 † accepted as Artoperina Campbell, 1951 (original description)
Artophatna Haeckel, 1882 (original description)
Artophormis Haeckel, 1881 † (original description)
Artopilium Haeckel, 1881 (original description)
Astractura Haeckel, 1881 (original description)
Astrocyclia Haeckel, 1881 (original description)
Astrolonche Haeckel, 1881 (original description)
Astrolophus Haeckel, 1881 (original description)
Astrophacus Haeckel, 1881 † (original description)
Astrosestrum Haeckel, 1881 (original description)
Astrostaurus Haeckel, 1881 (original description)
Atactodiscus Haeckel, 1881 (original description)
Axocorys Haeckel, 1881 † (original description)
Bathropyramis Haeckel, 1881 (original description)
Belonaspis Haeckel, 1881 (original description)
Botryacantha Haeckel, 1881 (original description)
Botryocanna Haeckel, 1881 (original description)
Brachiospyris Haeckel, 1881 (original description)
Callimitra Haeckel, 1881 (original description)
Cannartus Haeckel, 1881 † (original description)
Caryodoras Haeckel, 1881 (original description)
Caryolonche Haeckel, 1881 (original description)
Caryosphaera Haeckel, 1881 (original description)
Caryostaurus Haeckel, 1881 (original description)
Caryostylus Haeckel, 1881 (original description)
Caryoxiphus Haeckel, 1881 (original description)
Cecryphalium Haeckel, 1881 † (original description)
Centrospira Haeckel, 1881 (original description)
Cephalopyramis Haeckel, 1881 (original description)
Cephalospyris Haeckel, 1881 (original description)
Cerasophaera Haeckel, 1881 accepted as Cerasosphaera Haeckel, 1882 (original description)
Cerasosphaera Haeckel, 1882 (original description)
Ceriaspis Haeckel, 1881 (original description)
Ceriosphaera Haeckel, 1881 (original description)
Chitonastrum Haeckel, 1881 (original description)
Cladarachnium Haeckel, 1881 (original description)
Cladocalpis Haeckel, 1881 (original description)
Cladocorona Haeckel, 1881 (original description)
Cladophatna Haeckel, 1881 (original description)
Cladopyramis Haeckel, 1881 (original description)
Cladoscenium Haeckel, 1881 (original description)
Cladospyris Haeckel, 1881 accepted as Cladospyris Ehrenberg, 1847 (original description)
Clathrobursa Haeckel, 1881 (original description)
Clathrocircus Haeckel, 1881 (original description)
Clathrocorona Haeckel, 1881 (original description)
Clathrocorys Haeckel, 1881 (original description)
Clathrocyclas Haeckel, 1881 (original description)
Clathrolychnus Haeckel, 1881 (original description)
Clathromitra Haeckel, 1881 (original description)
Clathropilium Haeckel, 1881 (original description)
Clathropyrgus Haeckel, 1881 (original description)
Clathrosphaera Haeckel, 1881 (original description)
Clathrospyris Haeckel, 1881 (original description)