Barynema
multilirata
(J.W. Hall, 1859 †)
(FOSSIL)

Brokenriveria
caleata
(G.A. Goldfuss, 1844 †)
(FOSSIL)

Brokenriveria
pharlapensis
Cook & Camilleri, 1997 †
(FOSSIL)

Brokenriveria
virginensis
Cook & al., 2003 †
(FOSSIL)

Cancellator
rohri
Frýda & Manda, 1997 †
(FOSSIL)

Crossoceras
newberryi
(J.W. Hall, 1860 †)
(FOSSIL)

Cyclonema
pervertens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
turritum
Lindström, 1884 †
(FOSSIL)

Cyclonema
australis
R. Etheridge jr., 1890 †
(FOSSIL)

Cyclonema
guillieri
Oehlert, 1877 †
(FOSSIL)

Cyclonema
immersum
Spitz, 1907 †
(FOSSIL)

Cyclonema
lilydalensis
R. Etheridge jr., 1891 †
(FOSSIL)

Cyclonema
persimile
Spitz, 1907 †
(FOSSIL)

Cyclonema
wellingtonensis
R. Etheridge jr., 1898 †
(FOSSIL)

Cyclonema
carens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
corallii
de Sowerby & Murchison, 1839 †
(FOSSIL)

Cyclonema
distans
Lindström, 1884 †
(FOSSIL)

Cyclonema
giganteum
Lindström, 1884 †
(FOSSIL)

Cyclonema
pauper
J.W. Hall, 1867 †
(FOSSIL)

Cyclonema
rugaelineata
J.W. Hall & R.P. Whitfield, 1872 †
(FOSSIL)

Cyclonema
zonatum
Lindström, 1884 †
(FOSSIL)

Cyclonema
phaedra
Billings, 1865 †
(FOSSIL)

Cyclonema
circumnodosum
E.A.L. Kittl, 1894 †
(FOSSIL)

Cyclonema
leavenworthana
J.W. Hall, 1856 †
(FOSSIL)

Cyclonema
tsuchidai
Endo, 1935 †
(FOSSIL)

Cyclonema
multilira
J.W. Hall, 1859 †
(FOSSIL)

Cyclonema
hiiumaa
Teichert, 1928 †
(FOSSIL)

Cyclonema
costatus
(M.J. James, 1872 †)
(FOSSIL)

Cyclonema
aiens
(Sardeson, 1896 †)
(FOSSIL)

Cyclonema
ampullosum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
ananas
J. Perner, 1903 †
(FOSSIL)

Cyclonema
apicatum
Lindström, 1884 †
(FOSSIL)

Cyclonema
bellulum
Billings, 1866 †
(FOSSIL)

Cyclonema
bilix
(T.A. Conrad, 1842 †)
(FOSSIL)

Cyclonema
bilix
Miller, 1874 †
(FOSSIL)

Cyclonema
bilix
(T.A. Conrad, 1842 †)
(FOSSIL)

Cyclonema
boreale
C.M. Poulsen, 1974 †
(FOSSIL)

Cyclonema
canaliculata
Angelin & Lindström, 1880 †
(FOSSIL)

Cyclonema
cives
J. Perner, 1903 †
(FOSSIL)

Cyclonema
compar
J. Perner, 1903 †
(FOSSIL)

Cyclonema
composita
J. Perner, 1903 †
(FOSSIL)

Cyclonema
consepultum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
convergens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
crebristria
(F. McCoy, 1851 †)
(FOSSIL)

Cyclonema
cushingi
Ruedemann, 1912 †
(FOSSIL)

Cyclonema
daytonensis
Foerste, 1899 †
(FOSSIL)

Cyclonema
decora
Billings, 1866 †
(FOSSIL)

Cyclonema
delicatula
Lindström, 1884 †
(FOSSIL)

Cyclonema
derelictum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
dowlingii
(J.J.F. Whiteaves, 1906 †)
(FOSSIL)

Cyclonema
fasciata
A.D. Ball, 1938 †
(FOSSIL)

Cyclonema
filicinctus
J.J.F. Whiteaves, 1904 †
(FOSSIL)

Cyclonema
formosum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
gracile
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
guilleri
Barrois, 1889 †
(FOSSIL)

Cyclonema
gyronemoides
Foerste, 1923 †
(FOSSIL)

Cyclonema
hageri
Billings, 1865 †
(FOSSIL)

Cyclonema
hallianum
Salter, 1859 †
(FOSSIL)

Cyclonema
humerosum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
inaequistriatum
E.F.R.K. Koken & J. Perner, 1925 †
(FOSSIL)

Cyclonema
inflatum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
infrequens
J. Perner, 1907 †
(FOSSIL)

Cyclonema
inopinata
J. Perner, 1907 †
(FOSSIL)

Cyclonema
intermedium
(Bradley, 1930 †)
(FOSSIL)

Cyclonema
karlsteinensis
J. Perner, 1903 †
(FOSSIL)

Cyclonema
laudabile
J. Perner, 1903 †
(FOSSIL)

Cyclonema
lepidula
(J. Perner, 1903 †)
(FOSSIL)

Cyclonema
leptonotum
(W.J. Raymond, 1905 †)
(FOSSIL)

Cyclonema
limatum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
lineatum
E.F.R.K. Koken, 1897 †
(FOSSIL)

Cyclonema
lydiamariarum
Peel, 1975 †
(FOSSIL)

Cyclonema
margaritoides
(J.J.F. Whiteaves, 1897 †)
(FOSSIL)

Cyclonema
marylandense
Prosser & Kindle, 1913 †
(FOSSIL)

Cyclonema
mediale
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
minuta
(J.W. Hall, 1845 †)
(FOSSIL)

Cyclonema
modestum
C.M. Poulsen, 1974 †
(FOSSIL)

Cyclonema
montrealense
Billings, 1865 †
(FOSSIL)

Cyclonema
niagarensis
Winchell & Marcy, 1866 †
(FOSSIL)

Cyclonema
nodulosum
Lindström, 1884 †
(FOSSIL)

Cyclonema
obsolescens
J.W. Hall, 1876 †
(FOSSIL)

Cyclonema
parvimedium
McLearn, 1924 †
(FOSSIL)

Cyclonema
percarinata
(J.W. Hall, 1847 †)
(FOSSIL)

Cyclonema
percingulatum
Billings, 1857 †
(FOSSIL)

Cyclonema
praecipitum
(Ulrich & Scofield, 1897 †)
(FOSSIL)

Cyclonema
rupestre
(K.E.I. von Eichwald, 1856 †)
(FOSSIL)

Cyclonema
servus
(J. Perner, 1903 †)
(FOSSIL)

Cyclonema
simulans
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
statshiunaica
Saladzius, 1966 †
(FOSSIL)

Cyclonema
sublaeve
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
subundata
Northrop, 1939 †
(FOSSIL)

Cyclonema
sulcifera
d'Eichwald, 1856 †
(FOSSIL)

Cyclonema
sulphuriferum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
tenuissimum
Lindström, 1884 †
(FOSSIL)

Cyclonema
textilis
(Miller, 1897 †)
(FOSSIL)

Cyclonema
thalia
Billings, 1857 †
(FOSSIL)

Cyclonema
timidum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
transversum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
trepidans
J. Perner, 1903 †
(FOSSIL)

Cyclonema
varians
Billings, 1857 †
(FOSSIL)

Cyclonema
varicosum
J.W. Hall, 1861 †
(FOSSIL)

Cyclonema
varispirum
Twenhofel, 1928 †
(FOSSIL)

Cyclonema
ventricosa
J.W. Hall, 1852 †
(FOSSIL)

Cyclonema
contexta
J. Perner, 1903 †
(FOSSIL)

Cyclonema
cancellatum
Angelin & Lindström, 1880 †
(FOSSIL)

Cyclonema
crenulata
F.B. Meek, 1871 †
(FOSSIL)

Cyclonema
pyramidatum
M.J. James †
(FOSSIL)

Cyclonema
rupestre
(K.E.I. von Eichwald, 1840 †)
(FOSSIL)

Cyclonema
concinna
J.W. Hall, 1876 †
(FOSSIL)

Cyclonema
multistriata
A.H. Clarke & Swartz, 1913 †
(FOSSIL)

Cyclonema
perstrialis
Fenton & Fenton, 1924 †
(FOSSIL)

Cyclonema
supralirata
Rohr & Smith, 1978 †
(FOSSIL)

Cyclonema
crebristria
Pitcher †
(FOSSIL)

Cyclonema
repertum
Reed †
(FOSSIL)

Cyclonema
undifera
(McCoy) †
(FOSSIL)

Cyclonema
pervertens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
turritum
Lindström, 1884 †
(FOSSIL)

Cyclonema
australis
R. Etheridge jr., 1890 †
(FOSSIL)

Cyclonema
guillieri
Oehlert, 1877 †
(FOSSIL)

Cyclonema
immersum
Spitz, 1907 †
(FOSSIL)

Cyclonema
lilydalensis
R. Etheridge jr., 1891 †
(FOSSIL)

Cyclonema
persimile
Spitz, 1907 †
(FOSSIL)

Cyclonema
wellingtonensis
R. Etheridge jr., 1898 †
(FOSSIL)

Cyclonema
carens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
corallii
de Sowerby & Murchison, 1839 †
(FOSSIL)

Cyclonema
distans
Lindström, 1884 †
(FOSSIL)

Cyclonema
giganteum
Lindström, 1884 †
(FOSSIL)

Cyclonema
pauper
J.W. Hall, 1867 †
(FOSSIL)

Cyclonema
rugaelineata
J.W. Hall & R.P. Whitfield, 1872 †
(FOSSIL)

Cyclonema
zonatum
Lindström, 1884 †
(FOSSIL)

Cyclonema
phaedra
Billings, 1865 †
(FOSSIL)

Cyclonema
circumnodosum
E.A.L. Kittl, 1894 †
(FOSSIL)

Cyclonema
leavenworthana
J.W. Hall, 1856 †
(FOSSIL)

Cyclonema
tsuchidai
Endo, 1935 †
(FOSSIL)

Cyclonema
multilira
J.W. Hall, 1859 †
(FOSSIL)

Cyclonema
hiiumaa
Teichert, 1928 †
(FOSSIL)

Cyclonema
costatus
(M.J. James, 1872 †)
(FOSSIL)

Cyclonema
aiens
(Sardeson, 1896 †)
(FOSSIL)

Cyclonema
ampullosum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
ananas
J. Perner, 1903 †
(FOSSIL)

Cyclonema
apicatum
Lindström, 1884 †
(FOSSIL)

Cyclonema
bellulum
Billings, 1866 †
(FOSSIL)

Cyclonema
bilix
(T.A. Conrad, 1842 †)
(FOSSIL)

Cyclonema
bilix
Miller, 1874 †
(FOSSIL)

Cyclonema
bilix
(T.A. Conrad, 1842 †)
(FOSSIL)

Cyclonema
boreale
C.M. Poulsen, 1974 †
(FOSSIL)

Cyclonema
canaliculata
Angelin & Lindström, 1880 †
(FOSSIL)

Cyclonema
cives
J. Perner, 1903 †
(FOSSIL)

Cyclonema
compar
J. Perner, 1903 †
(FOSSIL)

Cyclonema
composita
J. Perner, 1903 †
(FOSSIL)

Cyclonema
consepultum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
convergens
J. Perner, 1903 †
(FOSSIL)

Cyclonema
crebristria
(F. McCoy, 1851 †)
(FOSSIL)

Cyclonema
cushingi
Ruedemann, 1912 †
(FOSSIL)

Cyclonema
daytonensis
Foerste, 1899 †
(FOSSIL)

Cyclonema
decora
Billings, 1866 †
(FOSSIL)

Cyclonema
delicatula
Lindström, 1884 †
(FOSSIL)

Cyclonema
derelictum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
dowlingii
(J.J.F. Whiteaves, 1906 †)
(FOSSIL)

Cyclonema
fasciata
A.D. Ball, 1938 †
(FOSSIL)

Cyclonema
filicinctus
J.J.F. Whiteaves, 1904 †
(FOSSIL)

Cyclonema
formosum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
gracile
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
guilleri
Barrois, 1889 †
(FOSSIL)

Cyclonema
gyronemoides
Foerste, 1923 †
(FOSSIL)

Cyclonema
hageri
Billings, 1865 †
(FOSSIL)

Cyclonema
hallianum
Salter, 1859 †
(FOSSIL)

Cyclonema
humerosum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
inaequistriatum
E.F.R.K. Koken & J. Perner, 1925 †
(FOSSIL)

Cyclonema
inflatum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
infrequens
J. Perner, 1907 †
(FOSSIL)

Cyclonema
inopinata
J. Perner, 1907 †
(FOSSIL)

Cyclonema
intermedium
(Bradley, 1930 †)
(FOSSIL)

Cyclonema
karlsteinensis
J. Perner, 1903 †
(FOSSIL)

Cyclonema
laudabile
J. Perner, 1903 †
(FOSSIL)

Cyclonema
lepidula
(J. Perner, 1903 †)
(FOSSIL)

Cyclonema
leptonotum
(W.J. Raymond, 1905 †)
(FOSSIL)

Cyclonema
limatum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
lineatum
E.F.R.K. Koken, 1897 †
(FOSSIL)

Cyclonema
lydiamariarum
Peel, 1975 †
(FOSSIL)

Cyclonema
margaritoides
(J.J.F. Whiteaves, 1897 †)
(FOSSIL)

Cyclonema
marylandense
Prosser & Kindle, 1913 †
(FOSSIL)

Cyclonema
mediale
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
minuta
(J.W. Hall, 1845 †)
(FOSSIL)

Cyclonema
modestum
C.M. Poulsen, 1974 †
(FOSSIL)

Cyclonema
montrealense
Billings, 1865 †
(FOSSIL)

Cyclonema
niagarensis
Winchell & Marcy, 1866 †
(FOSSIL)

Cyclonema
nodulosum
Lindström, 1884 †
(FOSSIL)

Cyclonema
obsolescens
J.W. Hall, 1876 †
(FOSSIL)

Cyclonema
parvimedium
McLearn, 1924 †
(FOSSIL)

Cyclonema
percarinata
(J.W. Hall, 1847 †)
(FOSSIL)

Cyclonema
percingulatum
Billings, 1857 †
(FOSSIL)

Cyclonema
praecipitum
(Ulrich & Scofield, 1897 †)
(FOSSIL)

Cyclonema
rupestre
(K.E.I. von Eichwald, 1856 †)
(FOSSIL)

Cyclonema
servus
(J. Perner, 1903 †)
(FOSSIL)

Cyclonema
simulans
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
statshiunaica
Saladzius, 1966 †
(FOSSIL)

Cyclonema
sublaeve
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
subundata
Northrop, 1939 †
(FOSSIL)

Cyclonema
sulcifera
d'Eichwald, 1856 †
(FOSSIL)

Cyclonema
sulphuriferum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
tenuissimum
Lindström, 1884 †
(FOSSIL)

Cyclonema
textilis
(Miller, 1897 †)
(FOSSIL)

Cyclonema
thalia
Billings, 1857 †
(FOSSIL)

Cyclonema
timidum
J. Perner, 1903 †
(FOSSIL)

Cyclonema
transversum
Ulrich & Scofield, 1897 †
(FOSSIL)

Cyclonema
trepidans
J. Perner, 1903 †
(FOSSIL)

Cyclonema
varians
Billings, 1857 †
(FOSSIL)

Cyclonema
varicosum
J.W. Hall, 1861 †
(FOSSIL)

Cyclonema
varispirum
Twenhofel, 1928 †
(FOSSIL)

Cyclonema
ventricosa
J.W. Hall, 1852 †
(FOSSIL)

Cyclonema
contexta
J. Perner, 1903 †
(FOSSIL)

Cyclonema
cancellatum
Angelin & Lindström, 1880 †
(FOSSIL)

Cyclonema
crenulata
F.B. Meek, 1871 †
(FOSSIL)

Cyclonema
pyramidatum
M.J. James †
(FOSSIL)

Cyclonema
rupestre
(K.E.I. von Eichwald, 1840 †)
(FOSSIL)

Cyclonema
concinna
J.W. Hall, 1876 †
(FOSSIL)

Cyclonema
multistriata
A.H. Clarke & Swartz, 1913 †
(FOSSIL)

Cyclonema
perstrialis
Fenton & Fenton, 1924 †
(FOSSIL)

Cyclonema
supralirata
Rohr & Smith, 1978 †
(FOSSIL)

Cyclonema
crebristria
Pitcher †
(FOSSIL)

Cyclonema
repertum
Reed †
(FOSSIL)

Cyclonema
undifera
(McCoy) †
(FOSSIL)

Euthyrhachis
indianense
(Miller & Gurley, 1897 †)
(FOSSIL)

Euthyrhachis
vulgaris
(J. Perner, 1907 †)
(FOSSIL)

Keeneia
carnarvonensis
Dickins, 1957 †
(FOSSIL)

Keeneia
hesdoensis
(Sahni & Dutt, 1959 †)
(FOSSIL)

Keeneia
ocula
(Sowerby, 1838 †)
(FOSSIL)

Keeneia
platyschismoides
R. Etheridge jr., 1902 †
(FOSSIL)

Keeneia
twelvetreesi
Dun, 1913 †
(FOSSIL)

Keeneia
occasa
E.M. Fletcher 1958 †
(FOSSIL)

Keeneia
pristina
P.A. Maxwell 1964 †
(FOSSIL)

Leptozone
esthetica
J. Perner, 1907 †
(FOSSIL)

Lotzia
neglecta
(B. Phillips, 1841 †)
(FOSSIL)

Lotzia
schaeferkalki
Heidelberger, 2001 †
(FOSSIL)

Naticonema
plebium
J. Perner, 1903 †
(FOSSIL)

Naticonema
kauffmani
Peel, 1975 †
(FOSSIL)

Naticonema
similare
J. Perner, 1903 †
(FOSSIL)

Naticonema
similaris
J. Perner, 1903 †
(FOSSIL)

Naticonema
niagarensis
J.W. Hall, 1852 †
(FOSSIL)

Naticonoda
prieuri
Heidelberger, 2001 †
(FOSSIL)

Nonorios
kleistos
Ebbestad & al., 2008 †
(FOSSIL)

Nonorios
pater
(J. Perner, 1903 †)
(FOSSIL)

Nonorios
pectinata
(J. Perner, 1903 †)
(FOSSIL)

Paffrathia
lotzi
(Frýda, 1998 †)
(FOSSIL)