Asthenoceras
nannodes
(Buckman, 1890 †)
(FOSSIL)

Asthenoceras
taverai
Sandoval, 2012 †
(FOSSIL)

Asthenoceras
intermedium
(Imlay, 1973 †)
(FOSSIL)

Asthenoceras
delicatum
Imlay, 1973 †
(FOSSIL)

Dorsetensia
edouardiana
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Dorsetensia
liostraca
(Buckman, 1892 †)
(FOSSIL)

Dorsetensia
tessoniana
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Dorsetensia
romani
(Oppel), 1857 †
(FOSSIL)

Fontannesia
montillanensis
Linares & Sandoval, 1988 †
(FOSSIL)

Fontannesia
whitehousei
Arkell, 1954 †
(FOSSIL)

Fontannesia
intermedia
Imlay, 1973 †
(FOSSIL)

Fontannesia
carinata
(S.S. Buckman, 1902 †)
(FOSSIL)

Fontannesia
curvata
Buckman †
(FOSSIL)

Fontannesia
despecta
Buckman †
(FOSSIL)

Fontannesia
luculenta
Buckman †
(FOSSIL)

Fontannesia
tortiva
Buckman †
(FOSSIL)

Newmarracarroceras
fairbridgei
(Arkell, 1954 †)
(FOSSIL)

Sonninia
playfordi
(Arkell, 1954 †)
(FOSSIL)

Sonninia
alaskensis
(Westermann, 1969 †)
(FOSSIL)

Sonninia
propinquans
(C.É. Bayle, 1848 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
adicra
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
patella
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
jugifera
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
modestum
(Buckman, 1892 †)
(FOSSIL)

Sonninia
undifer
(Buckman, 1923 †)
(FOSSIL)

Sonninia
alternata
Buckman †
(FOSSIL)

Sonninia
abnormis
Buckman †
(FOSSIL)

Sonninia
acanthodes
Buckman †
(FOSSIL)

Sonninia
attrita
Buckman †
(FOSSIL)

Sonninia
biplicata
S.S. Buckman, 1887 †
(FOSSIL)

Sonninia
brevispinata
Buckman †
(FOSSIL)

Sonninia
browni
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
camura
Buckman †
(FOSSIL)

Sonninia
contusa
Buckman †
(FOSSIL)

Sonninia
corrugatus
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
costata
Buckman †
(FOSSIL)

Sonninia
costigera
Buckman †
(FOSSIL)

Sonninia
crassa
Buckman †
(FOSSIL)

Sonninia
crassibullata
Buckman †
(FOSSIL)

Sonninia
crassicostata
Buckman †
(FOSSIL)

Sonninia
crassiformis
Buckman †
(FOSSIL)

Sonninia
crassinuda
Buckman †
(FOSSIL)

Sonninia
cymatera
Buckman †
(FOSSIL)

Sonninia
decora
Buckman †
(FOSSIL)

Sonninia
decorata
Buckman †
(FOSSIL)

Sonninia
diversa
Buckman †
(FOSSIL)

Sonninia
dominata
Buckman †
(FOSSIL)

Sonninia
dominatrix
Buckman †
(FOSSIL)

Sonninia
dominica
Buckman †
(FOSSIL)

Sonninia
duplicata
Buckman †
(FOSSIL)

Sonninia
eruomphalica
Buckman †
(FOSSIL)

Sonninia
gibbera
Buckman †
(FOSSIL)

Sonninia
irregularis
Buckman †
(FOSSIL)

Sonninia
magnispinata
Buckman †
(FOSSIL)

Sonninia
multicostata
Buckman †
(FOSSIL)

Sonninia
multispinata
Buckman †
(FOSSIL)

Sonninia
mutans
Buckman, 1904 †
(FOSSIL)

Sonninia
nodata
Buckman, 1894 †
(FOSSIL)

Sonninia
nuda
Buckman †
(FOSSIL)

Sonninia
omphalica
Buckman †
(FOSSIL)

Sonninia
palmata
Buckman †
(FOSSIL)

Sonninia
papilionacea
Buckman †
(FOSSIL)

Sonninia
parvicostata
Buckman †
(FOSSIL)

Sonninia
paucinodata
Buckman †
(FOSSIL)

Sonninia
plicata
Buckman †
(FOSSIL)

Sonninia
ptycta
Buckman †
(FOSSIL)

Sonninia
quadrifida
Buckman †
(FOSSIL)

Sonninia
reclinans
Buckman †
(FOSSIL)

Sonninia
reformata
Buckman †
(FOSSIL)

Sonninia
renovata
Buckman †
(FOSSIL)

Sonninia
revirescens
Buckman †
(FOSSIL)

Sonninia
semispinata
Buckman †
(FOSSIL)

Sonninia
simplex
Buckman †
(FOSSIL)

Sonninia
spinea
Buckman †
(FOSSIL)

Sonninia
spinicostata
Buckman †
(FOSSIL)

Sonninia
spinifera
Buckman †
(FOSSIL)

Sonninia
spinosa
Buckman †
(FOSSIL)

Sonninia
subcostata
Buckman †
(FOSSIL)

Sonninia
subdecorata
Buckman †
(FOSSIL)

Sonninia
subirregularis
Buckman †
(FOSSIL)

Sonninia
submarginata
Buckman †
(FOSSIL)

Sonninia
subsimplex
Buckman †
(FOSSIL)

Sonninia
subspinosa
Buckman †
(FOSSIL)

Sonninia
substriata
Buckman †
(FOSSIL)

Sonninia
sulcata
(Buckman) †
(FOSSIL)

Sonninia
tridactyla
Buckman †
(FOSSIL)

Sonninia
tuxedniensis
Imlay, 1964 †
(FOSSIL)

Sonninia
projectifer
S.S. Buckman, 1910 †
(FOSSIL)

Sonninia
micracanthicum
S.S. Buckman, 1925 †
(FOSSIL)

Sonninia
papillatum
S.S. Buckman, 1920 †
(FOSSIL)

Sonninia
arenata
(F.A. von Quenstedt †)
(FOSSIL)

Sonninia
espinazitensis
Tornquist, 1898 †
(FOSSIL)

Sonninia
playfordi
(Arkell, 1954 †)
(FOSSIL)

Sonninia
alaskensis
(Westermann, 1969 †)
(FOSSIL)

Sonninia
propinquans
(C.É. Bayle, 1848 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
adicra
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
patella
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
jugifera
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
modestum
(Buckman, 1892 †)
(FOSSIL)

Sonninia
undifer
(Buckman, 1923 †)
(FOSSIL)

Sonninia
alternata
Buckman †
(FOSSIL)

Sonninia
abnormis
Buckman †
(FOSSIL)

Sonninia
acanthodes
Buckman †
(FOSSIL)

Sonninia
attrita
Buckman †
(FOSSIL)

Sonninia
biplicata
S.S. Buckman, 1887 †
(FOSSIL)

Sonninia
brevispinata
Buckman †
(FOSSIL)

Sonninia
browni
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
camura
Buckman †
(FOSSIL)

Sonninia
contusa
Buckman †
(FOSSIL)

Sonninia
corrugatus
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
costata
Buckman †
(FOSSIL)

Sonninia
costigera
Buckman †
(FOSSIL)

Sonninia
crassa
Buckman †
(FOSSIL)

Sonninia
crassibullata
Buckman †
(FOSSIL)

Sonninia
crassicostata
Buckman †
(FOSSIL)

Sonninia
crassiformis
Buckman †
(FOSSIL)

Sonninia
crassinuda
Buckman †
(FOSSIL)

Sonninia
cymatera
Buckman †
(FOSSIL)

Sonninia
decora
Buckman †
(FOSSIL)

Sonninia
decorata
Buckman †
(FOSSIL)

Sonninia
diversa
Buckman †
(FOSSIL)

Sonninia
dominata
Buckman †
(FOSSIL)

Sonninia
dominatrix
Buckman †
(FOSSIL)

Sonninia
dominica
Buckman †
(FOSSIL)

Sonninia
duplicata
Buckman †
(FOSSIL)

Sonninia
eruomphalica
Buckman †
(FOSSIL)

Sonninia
gibbera
Buckman †
(FOSSIL)

Sonninia
irregularis
Buckman †
(FOSSIL)

Sonninia
magnispinata
Buckman †
(FOSSIL)

Sonninia
multicostata
Buckman †
(FOSSIL)

Sonninia
multispinata
Buckman †
(FOSSIL)

Sonninia
mutans
Buckman, 1904 †
(FOSSIL)

Sonninia
nodata
Buckman, 1894 †
(FOSSIL)

Sonninia
nuda
Buckman †
(FOSSIL)

Sonninia
omphalica
Buckman †
(FOSSIL)

Sonninia
palmata
Buckman †
(FOSSIL)

Sonninia
papilionacea
Buckman †
(FOSSIL)

Sonninia
parvicostata
Buckman †
(FOSSIL)

Sonninia
paucinodata
Buckman †
(FOSSIL)

Sonninia
plicata
Buckman †
(FOSSIL)

Sonninia
ptycta
Buckman †
(FOSSIL)

Sonninia
quadrifida
Buckman †
(FOSSIL)

Sonninia
reclinans
Buckman †
(FOSSIL)

Sonninia
reformata
Buckman †
(FOSSIL)

Sonninia
renovata
Buckman †
(FOSSIL)

Sonninia
revirescens
Buckman †
(FOSSIL)

Sonninia
semispinata
Buckman †
(FOSSIL)

Sonninia
simplex
Buckman †
(FOSSIL)

Sonninia
spinea
Buckman †
(FOSSIL)

Sonninia
spinicostata
Buckman †
(FOSSIL)

Sonninia
spinifera
Buckman †
(FOSSIL)

Sonninia
spinosa
Buckman †
(FOSSIL)

Sonninia
subcostata
Buckman †
(FOSSIL)

Sonninia
subdecorata
Buckman †
(FOSSIL)

Sonninia
subirregularis
Buckman †
(FOSSIL)

Sonninia
submarginata
Buckman †
(FOSSIL)

Sonninia
subsimplex
Buckman †
(FOSSIL)

Sonninia
subspinosa
Buckman †
(FOSSIL)

Sonninia
substriata
Buckman †
(FOSSIL)

Sonninia
sulcata
(Buckman) †
(FOSSIL)

Sonninia
tridactyla
Buckman †
(FOSSIL)

Sonninia
tuxedniensis
Imlay, 1964 †
(FOSSIL)

Sonninia
projectifer
S.S. Buckman, 1910 †
(FOSSIL)

Sonninia
micracanthicum
S.S. Buckman, 1925 †
(FOSSIL)

Sonninia
papillatum
S.S. Buckman, 1920 †
(FOSSIL)

Sonninia
arenata
(F.A. von Quenstedt †)
(FOSSIL)

Sonninia
espinazitensis
Tornquist, 1898 †
(FOSSIL)

Sonninia
playfordi
(Arkell, 1954 †)
(FOSSIL)

Sonninia
alaskensis
(Westermann, 1969 †)
(FOSSIL)

Sonninia
propinquans
(C.É. Bayle, 1848 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
adicra
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
patella
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
jugifera
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
modestum
(Buckman, 1892 †)
(FOSSIL)

Sonninia
undifer
(Buckman, 1923 †)
(FOSSIL)

Sonninia
alternata
Buckman †
(FOSSIL)

Sonninia
abnormis
Buckman †
(FOSSIL)

Sonninia
acanthodes
Buckman †
(FOSSIL)

Sonninia
attrita
Buckman †
(FOSSIL)

Sonninia
biplicata
S.S. Buckman, 1887 †
(FOSSIL)

Sonninia
brevispinata
Buckman †
(FOSSIL)

Sonninia
browni
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
camura
Buckman †
(FOSSIL)

Sonninia
contusa
Buckman †
(FOSSIL)

Sonninia
corrugatus
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
costata
Buckman †
(FOSSIL)

Sonninia
costigera
Buckman †
(FOSSIL)

Sonninia
crassa
Buckman †
(FOSSIL)

Sonninia
crassibullata
Buckman †
(FOSSIL)

Sonninia
crassicostata
Buckman †
(FOSSIL)

Sonninia
crassiformis
Buckman †
(FOSSIL)

Sonninia
crassinuda
Buckman †
(FOSSIL)

Sonninia
cymatera
Buckman †
(FOSSIL)

Sonninia
decora
Buckman †
(FOSSIL)

Sonninia
decorata
Buckman †
(FOSSIL)

Sonninia
diversa
Buckman †
(FOSSIL)

Sonninia
dominata
Buckman †
(FOSSIL)

Sonninia
dominatrix
Buckman †
(FOSSIL)

Sonninia
dominica
Buckman †
(FOSSIL)

Sonninia
duplicata
Buckman †
(FOSSIL)

Sonninia
eruomphalica
Buckman †
(FOSSIL)

Sonninia
gibbera
Buckman †
(FOSSIL)

Sonninia
irregularis
Buckman †
(FOSSIL)

Sonninia
magnispinata
Buckman †
(FOSSIL)

Sonninia
multicostata
Buckman †
(FOSSIL)

Sonninia
multispinata
Buckman †
(FOSSIL)

Sonninia
mutans
Buckman, 1904 †
(FOSSIL)

Sonninia
nodata
Buckman, 1894 †
(FOSSIL)

Sonninia
nuda
Buckman †
(FOSSIL)

Sonninia
omphalica
Buckman †
(FOSSIL)

Sonninia
palmata
Buckman †
(FOSSIL)

Sonninia
papilionacea
Buckman †
(FOSSIL)

Sonninia
parvicostata
Buckman †
(FOSSIL)

Sonninia
paucinodata
Buckman †
(FOSSIL)

Sonninia
plicata
Buckman †
(FOSSIL)

Sonninia
ptycta
Buckman †
(FOSSIL)

Sonninia
quadrifida
Buckman †
(FOSSIL)

Sonninia
reclinans
Buckman †
(FOSSIL)

Sonninia
reformata
Buckman †
(FOSSIL)

Sonninia
renovata
Buckman †
(FOSSIL)

Sonninia
revirescens
Buckman †
(FOSSIL)

Sonninia
semispinata
Buckman †
(FOSSIL)

Sonninia
simplex
Buckman †
(FOSSIL)

Sonninia
spinea
Buckman †
(FOSSIL)

Sonninia
spinicostata
Buckman †
(FOSSIL)

Sonninia
spinifera
Buckman †
(FOSSIL)

Sonninia
spinosa
Buckman †
(FOSSIL)

Sonninia
subcostata
Buckman †
(FOSSIL)

Sonninia
subdecorata
Buckman †
(FOSSIL)

Sonninia
subirregularis
Buckman †
(FOSSIL)

Sonninia
submarginata
Buckman †
(FOSSIL)

Sonninia
subsimplex
Buckman †
(FOSSIL)

Sonninia
subspinosa
Buckman †
(FOSSIL)

Sonninia
substriata
Buckman †
(FOSSIL)

Sonninia
sulcata
(Buckman) †
(FOSSIL)

Sonninia
tridactyla
Buckman †
(FOSSIL)

Sonninia
tuxedniensis
Imlay, 1964 †
(FOSSIL)

Sonninia
projectifer
S.S. Buckman, 1910 †
(FOSSIL)

Sonninia
micracanthicum
S.S. Buckman, 1925 †
(FOSSIL)

Sonninia
papillatum
S.S. Buckman, 1920 †
(FOSSIL)

Sonninia
arenata
(F.A. von Quenstedt †)
(FOSSIL)

Sonninia
espinazitensis
Tornquist, 1898 †
(FOSSIL)

Sonninia
playfordi
(Arkell, 1954 †)
(FOSSIL)

Sonninia
alaskensis
(Westermann, 1969 †)
(FOSSIL)

Sonninia
propinquans
(C.É. Bayle, 1848 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
marginata
(Buckman, 1892 †)
(FOSSIL)

Sonninia
adicra
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
patella
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
jugifera
(L. Waagen, 1867 †)
(FOSSIL)

Sonninia
modestum
(Buckman, 1892 †)
(FOSSIL)

Sonninia
undifer
(Buckman, 1923 †)
(FOSSIL)

Sonninia
alternata
Buckman †
(FOSSIL)

Sonninia
abnormis
Buckman †
(FOSSIL)

Sonninia
acanthodes
Buckman †
(FOSSIL)

Sonninia
attrita
Buckman †
(FOSSIL)

Sonninia
biplicata
S.S. Buckman, 1887 †
(FOSSIL)

Sonninia
brevispinata
Buckman †
(FOSSIL)

Sonninia
browni
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
camura
Buckman †
(FOSSIL)

Sonninia
contusa
Buckman †
(FOSSIL)

Sonninia
corrugatus
(J. de C. Sowerby) †
(FOSSIL)

Sonninia
costata
Buckman †
(FOSSIL)

Sonninia
costigera
Buckman †
(FOSSIL)

Sonninia
crassa
Buckman †
(FOSSIL)

Sonninia
crassibullata
Buckman †
(FOSSIL)

Sonninia
crassicostata
Buckman †
(FOSSIL)

Sonninia
crassiformis
Buckman †
(FOSSIL)

Sonninia
crassinuda
Buckman †
(FOSSIL)

Sonninia
cymatera
Buckman †
(FOSSIL)

Sonninia
decora
Buckman †
(FOSSIL)

Sonninia
decorata
Buckman †
(FOSSIL)

Sonninia
diversa
Buckman †
(FOSSIL)

Sonninia
dominata
Buckman †
(FOSSIL)

Sonninia
dominatrix
Buckman †
(FOSSIL)

Sonninia
dominica
Buckman †
(FOSSIL)

Sonninia
duplicata
Buckman †
(FOSSIL)

Sonninia
eruomphalica
Buckman †
(FOSSIL)

Sonninia
gibbera
Buckman †
(FOSSIL)

Sonninia
irregularis
Buckman †
(FOSSIL)

Sonninia
magnispinata
Buckman †
(FOSSIL)

Sonninia
multicostata
Buckman †
(FOSSIL)

Sonninia
multispinata
Buckman †
(FOSSIL)

Sonninia
mutans
Buckman, 1904 †
(FOSSIL)

Sonninia
nodata
Buckman, 1894 †
(FOSSIL)

Sonninia
nuda
Buckman †
(FOSSIL)

Sonninia
omphalica
Buckman †
(FOSSIL)

Sonninia
palmata
Buckman †
(FOSSIL)

Sonninia
papilionacea
Buckman †
(FOSSIL)

Sonninia
parvicostata
Buckman †
(FOSSIL)

Sonninia
paucinodata
Buckman †
(FOSSIL)

Sonninia
plicata
Buckman †
(FOSSIL)

Sonninia
ptycta
Buckman †
(FOSSIL)

Sonninia
quadrifida
Buckman †
(FOSSIL)

Sonninia
reclinans
Buckman †
(FOSSIL)

Sonninia
reformata
Buckman †
(FOSSIL)

Sonninia
renovata
Buckman †
(FOSSIL)

Sonninia
revirescens
Buckman †
(FOSSIL)

Sonninia
semispinata
Buckman †
(FOSSIL)

Sonninia
simplex
Buckman †
(FOSSIL)

Sonninia
spinea
Buckman †
(FOSSIL)

Sonninia
spinicostata
Buckman †
(FOSSIL)

Sonninia
spinifera
Buckman †
(FOSSIL)

Sonninia
spinosa
Buckman †
(FOSSIL)

Sonninia
subcostata
Buckman †
(FOSSIL)

Sonninia
subdecorata
Buckman †
(FOSSIL)

Sonninia
subirregularis
Buckman †
(FOSSIL)

Sonninia
submarginata
Buckman †
(FOSSIL)

Sonninia
subsimplex
Buckman †
(FOSSIL)

Sonninia
subspinosa
Buckman †
(FOSSIL)

Sonninia
substriata
Buckman †
(FOSSIL)

Sonninia
sulcata
(Buckman) †
(FOSSIL)

Sonninia
tridactyla
Buckman †
(FOSSIL)

Sonninia
tuxedniensis
Imlay, 1964 †
(FOSSIL)

Sonninia
projectifer
S.S. Buckman, 1910 †
(FOSSIL)

Sonninia
micracanthicum
S.S. Buckman, 1925 †
(FOSSIL)

Sonninia
papillatum
S.S. Buckman, 1920 †
(FOSSIL)

Sonninia
arenata
(F.A. von Quenstedt †)
(FOSSIL)

Sonninia
espinazitensis
Tornquist, 1898 †
(FOSSIL)