Cyrtodonta
bodae
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
breviuscula
Billings, 1859 †
(FOSSIL)

Cyrtodonta
carberryi
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Cyrtodonta
dalecarlica
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
exigua
Foerste, 1924 †
(FOSSIL)

Cyrtodonta
grandis
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodonta
hazeli
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Cyrtodonta
holmi
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
kagawongensis
Foerste, 1924 †
(FOSSIL)

Cyrtodonta
kallholniensis
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
kayseri
Frech, 1891 †
(FOSSIL)

Cyrtodonta
lamellosa
Hudson, 1903 †
(FOSSIL)

Cyrtodonta
lindstromi
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
megumbona
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
mira
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
mobergi
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
oboloidea
(Hicks, 1873 †)
(FOSSIL)

Cyrtodonta
orsae
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
ovalis
Foerste, 1924 †
(FOSSIL)

Cyrtodonta
ponderosa
Billings, 1865 †
(FOSSIL)

Cyrtodonta
prima
Kobayashi, 1934 †
(FOSSIL)

Cyrtodonta
quartzitica
Frech, 1891 †
(FOSSIL)

Cyrtodonta
richardi
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
scala
W.J. Raymond, 1906 †
(FOSSIL)

Cyrtodonta
schmalenseei
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
solitaria
W.J. Raymond, 1905 †
(FOSSIL)

Cyrtodonta
staffordae
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Cyrtodonta
suecica
Isberg, 1934 †
(FOSSIL)

Cyrtodonta
wattii
R. Tate, 1896 †
(FOSSIL)

Cyrtodonta
cuneata
Miller, 1878 †
(FOSSIL)

Cyrtodonta
beckneri
Conkin †
(FOSSIL)

Cyrtodonta
halli
(Nettleroth †)
(FOSSIL)

Cyrtodonta
obesa
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
gibbera
(Ulrich, 1894 †)
(FOSSIL)

Cyrtodonta
rotulata
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
affinis
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
parva
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
janesvillensis
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
subovata
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
ampla
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
obliqua
F.B. Meek & A.H. Worthen †
(FOSSIL)

Cyrtodonta
glabella
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
persimilis
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
oviformis
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
billingsi
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
cingulata
Ulrich, 1894 †
(FOSSIL)

Cyrtodonta
tenella
Ulrich, 1890 †
(FOSSIL)

Cyrtodonta
cancellata
Reed, 1905 †
(FOSSIL)

Cyrtodonta
rugosa
Billings, 1858 †
(FOSSIL)

Cyrtodonta
expansa
(Portlock) †
(FOSSIL)

Cyrtodonta
securiformis
(Portlock) †
(FOSSIL)

Cyrtodonta
ventricosa
Harper †
(FOSSIL)

Cyrtodontula
compressa
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodontula
delacarlica
Isberg, 1934 †
(FOSSIL)

Cyrtodontula
dubia
T. Soot-Ryen & T. Soot-Ryen, 1960 †
(FOSSIL)

Cyrtodontula
hadzeli
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Cyrtodontula
obliquata
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodontula
sohli
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Cyrtodontula
subtruncata
(J.W. Hall, 1847 †)
(FOSSIL)

Cyrtodontula
truncata
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodontula
ventricosa
(J.W. Hall, 1847 †)
(FOSSIL)

Cyrtodontula
complanata
(Foerste, 1924 †)
(FOSSIL)

Cyrtodontula
acutiumbonis
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
goniumbonata
(Foerste, 1914 †)
(FOSSIL)

Cyrtodontula
hindi
(Billings, 1865 †)
(FOSSIL)

Cyrtodontula
huguesensis
(Foerste, 1924 †)
(FOSSIL)

Cyrtodontula
impressata
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
lata
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
parksi
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
plebia
(Billings, 1866 †)
(FOSSIL)

Cyrtodontula
radiata
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
securiformis
(Foerste, 1914 †)
(FOSSIL)

Cyrtodontula
sigmoidea
(Billings, 1858 †)
(FOSSIL)

Cyrtodontula
sterlingensis
(F.B. Meek & A.H. Worthen, 1890 †)
(FOSSIL)

Cyrtodontula
torontoensis
(C.C. Stewart, 1920 †)
(FOSSIL)

Cyrtodontula
quadrangularis
R.P. Whitfield †
(FOSSIL)

Cyrtodontula
rugatina
(Ulrich, 1892 †)
(FOSSIL)

Cyrtodontula
concentrica
(Ulrich, 1892 †)
(FOSSIL)

Cyrtodontula
megambona
(R.P. Whitfield, 1877 †)
(FOSSIL)

Cyrtodontula
praecipta
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodontula
scofieldi
(Ulrich, 1890 †)
(FOSSIL)

Cyrtodontula
subcarinata
(Ulrich, 1894 †)
(FOSSIL)

Cyrtodontula
inutilis
(Reed, 1905 †)
(FOSSIL)

Cyrtodontula
canadensis
W.J. Raymond, 1905 †
(FOSSIL)

Cyrtodontula
billingsiana
Salter †
(FOSSIL)

Dickinsartella
pistacina
Larghi, 2005 †
(FOSSIL)

Heikea
extumida
Isberg, 1934 †
(FOSSIL)

Heikea
fallax
Isberg, 1934 †
(FOSSIL)

Heikea
filberta
Isberg, 1934 †
(FOSSIL)

Heikea
fragilis
Isberg, 1934 †
(FOSSIL)

Heikea
glabra
Isberg, 1934 †
(FOSSIL)

Heikea
globosa
Isberg, 1934 †
(FOSSIL)

Heikea
insolita
Isberg, 1934 †
(FOSSIL)

Heikea
lata
Isberg, 1934 †
(FOSSIL)

Heikea
megumbona
Isberg, 1934 †
(FOSSIL)

Heikea
nux
Isberg, 1934 †
(FOSSIL)

Heikea
oblonga
Isberg, 1934 †
(FOSSIL)

Heikea
ovata
Isberg, 1934 †
(FOSSIL)

Heikea
parva
Isberg, 1934 †
(FOSSIL)

Heikea
plana
Isberg, 1934 †
(FOSSIL)

Heikea
preciosa
Isberg, 1934 †
(FOSSIL)

Heikea
pulchra
Isberg, 1934 †
(FOSSIL)

Heikea
rara
Isberg, 1934 †
(FOSSIL)

Heikea
reniformis
Isberg, 1934 †
(FOSSIL)

Heikea
rotunda
Isberg, 1934 †
(FOSSIL)

Heikea
saffordi
Isberg, 1934 †
(FOSSIL)

Heikea
selecta
Isberg, 1934 †
(FOSSIL)

Heikea
subglobosa
Isberg, 1934 †
(FOSSIL)

Heikea
ulrichi
Isberg, 1934 †
(FOSSIL)

Heikea
ventricosa
Isberg, 1934 †
(FOSSIL)

Heikea
veterior
Isberg, 1934 †
(FOSSIL)

Macrodesma
modesta
Isberg, 1934 †
(FOSSIL)

Macrodesma
striata
Isberg, 1934 †
(FOSSIL)

Ortonella
hainesi
(Miller, 1874 †)
(FOSSIL)

Ortonella
stewarti
Foerste, 1924 †
(FOSSIL)

Ortonella
aequibilis
Llandov La Vieille Fm †
(FOSSIL)

Pharcidoconcha
raupi
Pojeta & Gilbert-Tomlinson, 1977 †
(FOSSIL)

Vanuxemia
bulla
(Salter, 1866 †)
(FOSSIL)

Vanuxemia
decipiens
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
inconstans
Billings, 1858 †
(FOSSIL)

Vanuxemia
kagawongensis
Foerste, 1924 †
(FOSSIL)

Vanuxemia
limbata
W.J. Raymond, 1905 †
(FOSSIL)

Vanuxemia
odhneri
Isberg, 1934 †
(FOSSIL)

Vanuxemia
waynesvillensis
M.A. Frey, 1980 †
(FOSSIL)

Vanuxemia
sardesoni
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
dixonensis
F.B. Meek & A.H. Worthen †
(FOSSIL)

Vanuxemia
dixonensis
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
rotundata
J.W. Hall †
(FOSSIL)

Vanuxemia
obtusifrons
(Ulrich, 1894 †)
(FOSSIL)

Vanuxemia
suberecta
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
media
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
crassa
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
umbonata
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
hayniana
Safford †
(FOSSIL)

Vanuxemia
terminalis
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
niota
J.W. Hall †
(FOSSIL)

Vanuxemia
subrotunda
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
abrupta
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
wortheni
Ulrich, 1894 †
(FOSSIL)

Vanuxemia
contorta
(Portlock) †
(FOSSIL)

Warburgia
iniqua
Isberg, 1934 †
(FOSSIL)

Warburgia
lata
Isberg, 1934 †
(FOSSIL)

Warburgia
oviformis
Isberg, 1934 †
(FOSSIL)