IRMNG Taxon list
Gemma Deshayes, 1853 [Family: Veneridae, Phylum: Mollusca]
Gemma Hazay, 1884 (uncertain ) [Family: Zonitidae, Phylum: Mollusca]
Gemma V.A. Luchinina in I.T. Zhuravleva et al., 1982 † (unaccepted ) [Family: , Phylum: Acritarcha]
Gemma Wagner, 1907 (uncertain ) [Family: Helicinidae, Phylum: Mollusca]
Gemma fretensis Rehder, 1939 accepted as Gemma gemma (Totten, 1834)
Gemma gemma (Totten, 1834)
Gemma purpurea Lea, 1842
Gemma tottenii Stimpson, 1860 accepted as Gemma gemma (Totten, 1834)
Gemmabryum J.R. Spence & H.P. Ramsay, 2005 (uncertain )
Gemmacarcinus Müller & Collins, 1991 †
Gemmacoris Baranowski & Slater, 1987 (uncertain )
Gemmacrinus Prokop & Petr, 1989 †
Gemmactena Ou, Xiao, Han, Sun, Zhang, Zhang & Shu, 2015 †
Gemmaecaputia Tripathi, 1959
Gemmaecaputia australis Young, 1968 accepted as Caniongiella austalis (Young, 1968) Lebedev, 1976
Gemmaecaputia brinkmanni Unnithan, 1962 accepted as Paracaniongiella brinkmanni (Unnithan, 1962) Lebedev, 1976
Gemmaecaputia corrugata Tripathi, 1959
Gemmaecaputia tripathii Gupta & Krishna, 1980
Gemmainaperturites R.L. Pierce, 1961 † (uncertain )
Gemmamonocolpites T. van der Hammen & C. Garcia de Mutis, 1965 †
Gemmamonoletes R.L. Pierce, 1961 † accepted as Polypodiidites N.E. Ross ex R.A. Couper, 1953 †
Gemmamyces Casagrande, 1969 accepted as Cucurbitaria Gray, 1821
Gemmamyces piceae (Borthw.) Casagr., 1969 accepted as Cucurbitaria piceae Borthw., 1909
Gemmanella Schneider, 1956 †
Gemmanmonocolpites T. van der Hammen & C. Garcia de Mutis, 1965 †
Gemmaphora Mostovski, 1999
Gemmaphora numerosa Mostovski, 1999
Gemmapollis D.T. Pocknall, 1985 †
Gemmarcula † (uncertain )
Gemmaria Duchassaing & Michelotti, 1860 accepted as Haplotella Stechow, 1919 accepted as Palythoa Lamouroux, 1816 [Family: Sphenopidae]
Gemmaria McCrady, 1857 accepted as Palythoa Lamouroux, 1816 [Family: Zoanthidae]
Gemmaria McCrady, 1859, accepted as Zanclea Gegenbaur, 1856 [Family: Zancleidae]
Gemmaria R.A. Salisbury, 1866 [Family: Amaryllidaceae]
Gemmaria hicksoni Stepanjants, 1972
Gemmaspora D. Hawksworth & M.G. Halici, 2007
Gemmastephanocolpites T. van der Hammen & C. Garcia de Mutis, 1965 †
Gemmastephanoporites A.E. González Guzmán, 1967 †
Gemmastraea M'Coy, 1848 (unaccepted )
Gemmastrea Blainville, 1837 † accepted as Stylina Lamarck, 1816 †
Gemmata Franzmann & Skerman, 1985 emend. Scheuner et al., 2015
Gemmata obscuriglobus Franzmann & Skerman, 1985
Gemmataceae Kulichevskaya et al., 2017
Gemmaterebra Cotton, 1952 †
Gemmaterebra catenifera (Tate, 1886) †
Gemmathrips Reyes, 1994
Gemmatimonadaceae Zhang et al., 2003
Gemmatimonadales
Gemmatimonadetes
Gemmatimonadetes
Gemmatimonas Zhang et al., 2003
Gemmatimonas aurantiaca Zhang et al., 2003
Gemmatis Fischer de Waldheim, 1824 (uncertain )
Gemmatophora Kaup, 1827
Gemmatophora gilberti Storr, 1983 accepted as Lophognathus gilberti Gray, 1842
Gemmatophora longirostris Storr, 1983 accepted as Lophognathus longirostris Boulenger, 1883
Gemmatophora temporalis Storr, 1983 accepted as Lophognathus temporalis Günther, 1867
Gemmatosporis W. Krutzsch, 1959 † accepted as Polypodiidites N.E. Ross ex R.A. Couper, 1953 †
Gemmatotriletes T.C. Huang, 1978 † (uncertain )
Gemmatricolpites P.M.J. Van Hoeken-Klinkenberg, 1964 † (unaccepted )
Gemmatricolpites R.L. Pierce, 1961 †
Gemmatricolporites P. Leidelmeyer, 1966 †
Gemmatriletes R.L. Pierce, 1961 †
Gemmatriporopollis R.K. Saxena & S. Khare, 1996 †
Gemmazetes Fujikawa, 1979
Gemmazetes alpestris (Willmann, 1929)
Gemmazetes arcticus Pankov in Ryabinin & Pankov, 1993
Gemmazetes cavatica (Kunst, 1962)
Gemmazetes clavata (Jacot, 1937)
Gemmazetes crosbyi (Berlese, 1908)
Gemmazetes etruscus Bernini, 1980
Gemmazetes forsslundi (Moritz, 1965)
Gemmazetes kushiroensis Aoki, 1992
Gemmazetes mongolica (Balogh & Mahunka, 1965)
Gemmazetes tianshanensis Wen, 1989
Gemmazonocolpites R.E. Jan Du Chene, 1977 † (uncertain )