IRMNG Taxon list
Aaptotoichus Loeblich & Tappan, 1982 † (uncertain )
Abadehella Okimura & Ishii in Okimura, Ishii & Nakazawa, 1975 †
Abadehellidae Loeblich & Tappan, 1984 †
Abadehellopsis Vachard, 2019 †
Abantosphaeridium Banerjee & Rawat, 1991 † (unaccepted > nomen nudum )
Abas R. Ross & P.A. Sims, 1980 †
Abas wittii (Grunow) R. Ross & P.A. Sims, 1980
Abathomphalidae Pessagno, 1967 †
Abathomphalus Bolli, Loeblich & Tappan, 1957 †
Abathostoma Berger, 1994 (uncertain )
Abathstoma Berger in Lynn, 1979 (unaccepted > nomen nudum )
Abbottina McCulloch, 1977 accepted as Nonion de Montfort, 1808
Abditodentrix Patterson, 1985
Abditodentrix asketocomptella Patterson, 1985
Abditodentrix pseudothalmanni (Boltovskoy & Guissani de Kahn, 1981)
Abditodentrix rhomboidalis (Millett, 1899)
Abdullaevia Suleymanov, 1965 †
Abedinium A.R. Loeblich Jr. & A.R. Loeblich III, 1966
Abedinium dasypus (Cachon & Cachon-Enjumet) A.R. Loeblich Jr. & A.R. Loeblich III, 1966
Abnormisphaera Tikhomirova, 1986 †
Aboderium Rhumbler, 1913 accepted as Boderia Wright, 1867
Abollifer Vørs, 1992
Abollifer prolabens Vørs, 1992
Abolliferidae Cavalier-Smith in Cavalier-Smith, Chao & Lewis, 2018
Abrardia Neumann & Damotte, 1960 †
Abratopdinium S. Mao & B.A.R. Mohr, 1992 †
Abratopdinium cardioforme S. Mao & B.A.R. Mohr, 1992 †
Abratopdinium kerguelense S. Mao & B.A.R. Mohr, 1992 †
Abrotanifolia Stackhouse, 1809 accepted as Cystoseira C.A. Agardh, 1820
Abrotanifolia barbata Stackhouse, 1809 accepted as Cystoseira barbata (Stackhouse) C. Agardh, 1820
Abrotanifolia discors (Linnaeus) Stackhouse
Abrotanifolia foeniculacea (Linnaeus) Stackhouse
Abrotanifolia loeflingii Stackhouse
Abrotanifolia mucronata (Turner) Stackhouse
Abuhammadina Abd-Elshafy & Ibrahim, 1990 †
Abyssalia Gooday & Holzmann, 2020
Abyssamina Schnitker & Tjalsma, 1980 †
Abyssotherma Brönnimann, Van Dover & Whittaker, 1989 †
Abyssotherma pacifica Brönnimann, Van Dover & Whittaker, 1989 †
Acadialithus R.W. Howe, 2017 †
Acaeniotyle Foreman, 1973 †
Acaeniotylopsis Kito & de Wever, 1994 † (uncertain )
Acaenolithus M. Black, 1973 †
Acaenolithus cenomanicus Black, 1973 †
Acantharea
Acantharea (awaiting allocation) (temporary name )
Acantharea (awaiting allocation) (temporary name )
Acantharia accepted as Acantharea [Class: Acantharia]
Acantharia Quenstedt, 1881 (uncertain ) [Class: Acantharea]
Acanthaulax Sarjeant, 1968 † (uncertain > nomen dubium )
Acanthaulax acanthosphaera (Sarjeant) Sarjeant †
Acanthaulax aceras (Eisenack) Stover & Evitt †
Acanthaulax aculeata (Klement) Stover & Evitt †
Acanthaulax angulosa (Gitmez) Stover & Evitt †
Acanthaulax paliuros (Sarjeant) Sarjeant †
Acanthaulax senta Drugg, 1978 †
Acanthaulax spinosissima (Deflandre) Sarjeant †
Acanthaulax venusta (Klement, 1960) Sarjeant †
Acanthobotrys Popofsky, 1913 (uncertain )
Acanthocephalus A. von Frantzius, 1848
Acanthoceras H. Honigmann, 1909
Acanthoceras azoricum (Meneghini) Kützing accepted as Ceramium azoricum Meneghini accepted as Ceramium echionotum J.G. Agardh, 1844
Acanthoceras echinophorum (Meneghini) Frauenfeld
Acanthoceras echionotum (J.G. Agardh) Kützing
Acanthoceras madeburgensis Hongimann, 1910
Acanthoceras magdeburgense Honigmann accepted as Acanthoceras zachariasii (Brun) Simonsen
Acanthoceras oxyacanthum Kützing
Acanthoceras shuttleworthianum Kützing, 1842 accepted as Ceramium shuttleworthianum (Kützing) Rabenhorst, 1847
Acanthoceras transcurrens Kützing accepted as Ceramium echionotum J.G. Agardh, 1844
Acanthoceras zachariasii (Brun) Simonsen
Acanthocerataceae Round, Crawford & Mann, 1990 accepted as Chaetocerotaceae Ralfs, 1861
Acanthoceros accepted as Acanthoceras H. Honigmann, 1909
Acanthochiasma Krohn in Haeckel, 1861
Acanthochiasma fusiforme Haeckel, 1861
Acanthochiasmidae Haeckel, 1862
Acanthochisma accepted as Acanthochiasma Krohn in Haeckel, 1861
Acanthochloris Pascher, 1930
Acanthochloris bacillifera Pascher
Acanthochloris brevispinosa Pascher, 1930
Acanthochloris hungarica Palik
Acanthochloris ingens Margalef, 1956
Acanthochloris scherffelii Pascher
Acanthochloris verrucosa Ettl
Acanthochrysis W. Conrad, 1931 accepted as Chromulina L. Cienkowsky, 1870
Acanthochrysis echinococcus Conrad, 1931
Acanthochrysis echinocystus (Conrad) Conrad
Acanthochrysis fusiformis Conrad
Acanthocircularis Vishnevskaya, 2021 †
Acanthocircus Squinabol, 1903 †
Acanthocistidae accepted as Acanthocystidae Claus, 1874
Acanthocolla Schewiakoff, 1926
Acanthocollidae Schewiakoff, 1926
Acanthocorallium Haeckel, 1887 (uncertain )
Acanthocoronium Haeckel, 1887 (uncertain )
Acanthocorys Haeckel, 1881
Acanthocorys umbellifera Haeckel, 1862
Acanthocorythium Haeckel, 1887 (uncertain )
Acanthocyrtha (uncertain )
Acanthocyrtis Haeckel, 1881 (uncertain ) [Family: Radiolaria (awaiting allocation)]
Acanthocyrtis Haeckel, 1887 accepted as Phormostichoartus Campbell, 1951 [Family: Artostrobiidae]