abrupta, Vanuxemia abrupta Ulrich, 1894 † (FOSSIL)
acutiumbonis, Cyrtodontula acutiumbonis (Stewart, 1920) † (FOSSIL)
aequibilis, Ortonella aequibilis Llandov La Vieille Fm † (FOSSIL)
affinis, Cyrtodonta affinis Ulrich, 1894 † (FOSSIL)
amica, Yonginella amica Liljedahl, 1992 † (FOSSIL)
ampla, Cyrtodonta ampla Ulrich, 1894 † (FOSSIL)
bayfieldi, Vanuxemia bayfieldi (Billings, 1857) † (FOSSIL)
beckneri, Cyrtodonta beckneri Conkin † (FOSSIL)
bellistriata, Thorslundia bellistriata Isberg, 1934 † (FOSSIL)
billingsi, Cyrtodonta billingsi Ulrich, 1894 † (FOSSIL)
billingsiana, Cyrtodontula billingsiana Salter † (FOSSIL)
bodae, Cyrtodonta bodae Isberg, 1934 † (FOSSIL)
breviuscula, Cyrtodonta breviuscula Billings, 1859 † (FOSSIL)
bulla, Vanuxemia bulla (Salter, 1866) † (FOSSIL)
canadensis, Cyrtodontula canadensis Raymond, 1905 † - syn of: Sowteria canadensis (Raymond, 1905) † (FOSSIL)
cancellata, Cyrtodonta cancellata Reed, 1905 † (FOSSIL)
carberryi, Cyrtodonta carberryi Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
cingulata, Cyrtodonta cingulata Ulrich, 1894 † (FOSSIL)
communis, Heikea communis Isberg, 1934 † (FOSSIL)
complanata, Cyrtodontula complanata (Foerste, 1914) † (FOSSIL)
complanata moniquensis, Cyrtodontula complanata moniquensis (Foerste, 1924) † (FOSSIL)
compressa, Cyrtodontula compressa (Ulrich, 1890) † (FOSSIL)
compressa, Whitella compressa Ulrich, 1890 † - syn of: Cyrtodontula compressa (Ulrich, 1890) † (FOSSIL)
concentrica, Cyrtodontula concentrica (Ulrich, 1892) † (FOSSIL)
contorta, Vanuxemia contorta (Portlock) † (FOSSIL)
crassa, Warburgia crassa Isberg, 1934 † (FOSSIL)
crassa, Vanuxemia crassa Ulrich, 1894 † (FOSSIL)
cuneata, Cyrtodonta cuneata Miller, 1878 † (FOSSIL)
dalecarlica, Cyrtodonta dalecarlica Isberg, 1934 † (FOSSIL)
daliensis, Daliella daliensis (Guo, 1985) † (FOSSIL)
decipiens, Vanuxemia decipiens Ulrich, 1894 † (FOSSIL)
delacarlica, Cyrtodontula delacarlica Isberg, 1934 † (FOSSIL)
dixonensis, Vanuxemia dixonensis Meek & Worthen † (FOSSIL)
dixonensis insueta, Vanuxemia dixonensis insueta Ulrich, 1894 † (FOSSIL)
dubia, Cyrtodontula dubia Soot-Ryen & Soot-Ryen, 1960 † (FOSSIL)
elegantula, Dickinsartella elegantula (Dickins, 1963) † (FOSSIL)
enigma, Macrodesma enigma Kríž, 2008 † (FOSSIL)
exigua, Cyrtodonta exigua Foerste, 1924 † (FOSSIL)
expansa, Cyrtodonta expansa (Portlock) † (FOSSIL)
extumida, Heikea extumida Isberg, 1934 † (FOSSIL)
fallax, Heikea fallax Isberg, 1934 † (FOSSIL)
filberta, Heikea filberta Isberg, 1934 † (FOSSIL)
fragilis, Heikea fragilis Isberg, 1934 † (FOSSIL)
gibbera, Cyrtodonta gibbera (Ulrich, 1894) † (FOSSIL)
gibbosa, Cyrtodonta gibbosa Salter, 1910 † - syn of: Cyrtodonta wattii Tate, 1896 † (FOSSIL)
glabella, Cyrtodonta glabella Ulrich, 1894 † (FOSSIL)
glabra, Heikea glabra Isberg, 1934 † (FOSSIL)
globosa, Heikea globosa Isberg, 1934 † (FOSSIL)
goniumbonata, Cyrtodontula goniumbonata (Foerste, 1914) † (FOSSIL)
gorensis, Ortonella gorensis Foerste, 1924 † (FOSSIL)
grandis, Cyrtodonta grandis (Ulrich, 1890) † (FOSSIL)
hadzeli, Cyrtodontula hadzeli Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
hainesi, Ortonella hainesi (Miller, 1874) † (FOSSIL)
halli, Cyrtodonta halli (Nettleroth) † (FOSSIL)
hayniana, Vanuxemia hayniana Safford † (FOSSIL)
hazeli, Cyrtodonta hazeli Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
hindi, Cyrtodontula hindi (Billings, 1865) † (FOSSIL)
holmi, Cyrtodonta holmi Isberg, 1934 † (FOSSIL)
hopkinsoni, Cyrtodonta hopkinsoni Hicks, 1873 † - syn of: Cyrtodonta oboloidea (Hicks, 1873) † (FOSSIL)
huguesensis, Cyrtodontula huguesensis (Foerste, 1924) † (FOSSIL)
impressata, Cyrtodontula impressata (Stewart, 1920) † (FOSSIL)
inconstans, Vanuxemia inconstans Billings, 1858 † (FOSSIL)
iniqua, Warburgia iniqua Isberg, 1934 † (FOSSIL)
insolita, Heikea insolita Isberg, 1934 † (FOSSIL)
insueta, Vanuxemia dixonensis insueta Ulrich (FOSSIL)
inutilis, Cyrtodontula inutilis (Reed, 1905) † (FOSSIL)
inutilis, Whitella inutilis Reed, 1905 † - syn of: Cyrtodontula inutilis (Reed, 1905) † (FOSSIL)
janesvillensis, Cyrtodonta janesvillensis Ulrich, 1894 † (FOSSIL)
kagawongensis, Cyrtodonta kagawongensis Foerste, 1924 † (FOSSIL)
kagawongensis, Vanuxemia kagawongensis Foerste, 1924 † (FOSSIL)
kallholniensis, Cyrtodonta kallholniensis Isberg, 1934 † (FOSSIL)
kayseri, Cyrtodonta kayseri Frech, 1891 † (FOSSIL)
knappianum, Ptychodesma knappianum Hall & Whitfield, 1872 † (FOSSIL)
lamellosa, Cyrtodonta lamellosa Hudson, 1903 † (FOSSIL)
lata, Cyrtodontula lata (Stewart, 1920) † (FOSSIL)
lata, Heikea lata Isberg, 1934 † (FOSSIL)
lata, Warburgia lata Isberg, 1934 † (FOSSIL)
limbata, Vanuxemia limbata Raymond, 1905 † (FOSSIL)
lindstromi, Cyrtodonta lindstromi Isberg, 1934 † (FOSSIL)
lobleyi, Cyrtodonta lobleyi Hicks, 1873 † - syn of: Cyrtodonta oboloidea (Hicks, 1873) † (FOSSIL)
media, Vanuxemia media Ulrich, 1894 † (FOSSIL)
megambona, Cyrtodontula megambona (Whitfield, 1877) † (FOSSIL)
megambona, Whitella megambona Whitfield, 1877 † - syn of: Cyrtodontula megambona (Whitfield, 1877) † (FOSSIL)
megumbona, Cyrtodonta megumbona Isberg, 1934 † (FOSSIL)
megumbona, Heikea megumbona Isberg, 1934 † (FOSSIL)
mira, Cyrtodonta mira Isberg, 1934 † (FOSSIL)
mobergi, Cyrtodonta mobergi Isberg, 1934 † (FOSSIL)
modesta, Macrodesma modesta Isberg, 1934 † (FOSSIL)
moniquensis, Cyrtodontula complanata moniquensis Foerste (FOSSIL)
niota, Vanuxemia niota Hall † (FOSSIL)
nux, Heikea nux Isberg, 1934 † (FOSSIL)
obesa, Cyrtodonta obesa Ulrich, 1894 † (FOSSIL)
obliqua, Cyrtodonta obliqua Meek & Worthen † (FOSSIL)
obliquata, Cyrtodontula obliquata (Ulrich, 1890) † (FOSSIL)
oblonga, Heikea oblonga Isberg, 1934 † (FOSSIL)
oboloidea, Cyrtodonta oboloidea (Hicks, 1873) † (FOSSIL)
obtusifrons, Vanuxemia obtusifrons (Ulrich, 1894) † (FOSSIL)
odhneri, Vanuxemia odhneri Isberg, 1934 † (FOSSIL)
orsae, Cyrtodonta orsae Isberg, 1934 † (FOSSIL)
ovalis, Cyrtodonta ovalis Foerste, 1924 † (FOSSIL)
ovata, Heikea ovata Isberg, 1934 † (FOSSIL)
oviformis, Warburgia oviformis Isberg, 1934 † (FOSSIL)
oviformis, Cyrtodonta oviformis Ulrich, 1894 † (FOSSIL)
parallela, Pharcidoconcha parallela (Hsü & Ma, 1948) † (FOSSIL)
parksi, Cyrtodontula parksi (Stewart, 1920) † (FOSSIL)
parva, Heikea parva Isberg, 1934 † (FOSSIL)
parva, Cyrtodonta parva Ulrich, 1894 † (FOSSIL)
persimilis, Cyrtodonta persimilis Ulrich, 1894 † (FOSSIL)
pistacina, Dickinsartella pistacina Larghi, 2005 † (FOSSIL)
plana, Heikea plana Isberg, 1934 † (FOSSIL)
plebia, Cyrtodontula plebia (Billings, 1866) † (FOSSIL)
ponderosa, Cyrtodonta ponderosa Billings, 1865 † (FOSSIL)
praecipta, Cyrtodontula praecipta (Ulrich, 1890) † (FOSSIL)
praecipta, Whitella praecipta Ulrich, 1890 † - syn of: Cyrtodontula praecipta (Ulrich, 1890) † (FOSSIL)
preciosa, Heikea preciosa Isberg, 1934 † (FOSSIL)
prima, Cyrtodonta prima Kobayashi, 1934 † (FOSSIL)
pulchra, Heikea pulchra Isberg, 1934 † (FOSSIL)
quadrangularis, Whitella quadrangularis Whitfield † - syn of: Cyrtodontula quadrangularis Whitfield † (FOSSIL)
quadrangularis, Cyrtodontula quadrangularis Whitfield † (FOSSIL)
quartzitica, Cyrtodonta quartzitica Frech, 1891 † (FOSSIL)
radiata, Cyrtodontula radiata (Stewart, 1920) † (FOSSIL)
rara, Heikea rara Isberg, 1934 † (FOSSIL)
raupi, Pharcidoconcha raupi Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
reniformis, Heikea reniformis Isberg, 1934 † (FOSSIL)
richardi, Cyrtodonta richardi Isberg, 1934 † (FOSSIL)
rotulata, Cyrtodonta rotulata Ulrich, 1894 † (FOSSIL)
rotunda, Heikea rotunda Isberg, 1934 † (FOSSIL)
rotundata, Vanuxemia rotundata Hall † (FOSSIL)
rugatina, Cyrtodontula rugatina (Ulrich, 1892) † (FOSSIL)
rugatina, Whitella rugatina Ulrich, 1892 † - syn of: Cyrtodontula rugatina (Ulrich, 1892) † (FOSSIL)
rugosa, Cyrtodonta rugosa Billings, 1858 † (FOSSIL)
saffordi, Heikea saffordi Isberg, 1934 † (FOSSIL)
sardesoni, Vanuxemia sardesoni Ulrich, 1894 † (FOSSIL)
scala, Cyrtodonta scala Raymond, 1906 † (FOSSIL)
schmalenseei, Cyrtodonta schmalenseei Isberg, 1934 † (FOSSIL)
scofieldi, Cyrtodontula scofieldi (Ulrich, 1890) † (FOSSIL)
scofieldi, Whitella scofieldi Ulrich, 1890 † - syn of: Cyrtodontula scofieldi (Ulrich, 1890) † (FOSSIL)
securiformis, Cyrtodontula securiformis (Foerste, 1914) † (FOSSIL)
securiformis, Cyrtodonta securiformis (Portlock) † (FOSSIL)
selecta, Heikea selecta Isberg, 1934 † (FOSSIL)
sigmoidea, Cyrtodontula sigmoidea (Billings, 1858) † (FOSSIL)
sohli, Cyrtodontula sohli Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
solitaria, Cyrtodonta solitaria Raymond, 1905 † (FOSSIL)
staffordae, Cyrtodonta staffordae Pojeta & Gilbert-Tomlinson, 1977 † (FOSSIL)
sterlingensis, Cyrtodontula sterlingensis (Meek & Worthen, 1890) † (FOSSIL)
sterlingensis, Whitella sterlingensis Meek & Worthen, 1890 † - syn of: Cyrtodontula sterlingensis (Meek & Worthen, 1890) † (FOSSIL)
stewarti, Ortonella stewarti Foerste, 1924 † (FOSSIL)
striata, Macrodesma striata Isberg, 1934 † (FOSSIL)
subcarinata, Cyrtodontula subcarinata (Ulrich, 1894) † (FOSSIL)
subcarinata, Whitella subcarinata Ulrich, 1894 † - syn of: Cyrtodontula subcarinata (Ulrich, 1894) † (FOSSIL)
suberecta, Vanuxemia suberecta Ulrich, 1894 † (FOSSIL)
subglobosa, Heikea subglobosa Isberg, 1934 † (FOSSIL)
subovata, Cyrtodonta subovata Ulrich, 1894 † (FOSSIL)
subrotunda, Vanuxemia subrotunda Ulrich, 1894 † (FOSSIL)
subtruncata, Cyrtodontula subtruncata (Hall, 1847) † (FOSSIL)
suecica, Cyrtodonta suecica Isberg, 1934 † (FOSSIL)
tenella, Cyrtodonta tenella Ulrich, 1890 † (FOSSIL)
terminalis, Vanuxemia terminalis Ulrich, 1894 † (FOSSIL)
torontoensis, Cyrtodontula torontoensis (Stewart, 1920) † (FOSSIL)
tranceps, Cyrtodonta tranceps Raymond, 1916 † - syn of: Cymatonota tranceps Raymond, 1916 † (FOSSIL)
truncata, Cyrtodontula truncata (Ulrich, 1890) † (FOSSIL)
truncata, Whitella truncata Ulrich, 1890 † - syn of: Cyrtodontula truncata (Ulrich, 1890) † (FOSSIL)
ulrichi, Heikea ulrichi Isberg, 1934 † (FOSSIL)
umbonata, Vanuxemia umbonata Ulrich, 1894 † (FOSSIL)
ventricosa, Cyrtodontula ventricosa (Hall, 1847) † (FOSSIL)
ventricosa, Whitella ventricosa Hall, 1847 † - syn of: Cyrtodontula ventricosa (Hall, 1847) † (FOSSIL)
ventricosa, Cyrtodonta ventricosa Harper † (FOSSIL)
ventricosa, Heikea ventricosa Isberg, 1934 † (FOSSIL)
veterior, Heikea veterior Isberg, 1934 † (FOSSIL)
wattii, Cyrtodonta wattii Tate, 1896 † (FOSSIL)
waynesvillensis, Vanuxemia waynesvillensis Frey, 1980 † (FOSSIL)
wortheni, Vanuxemia wortheni Ulrich, 1894 † (FOSSIL)
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