Aulacostephanus
eudoxus
(A.V.M.D. D'Orbigny, 1850 †)
(FOSSIL)

Aulacostephanus
kirghisensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
lopsiensis
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
pseudolinealis
Mesezhnikov, 1969 †
(FOSSIL)

Aulacostephanus
undorae
Pavlov, 1886 †
(FOSSIL)

Aulacostephanus
volgensis
Vischniakoff, 1875 †
(FOSSIL)

Aulacostephanus
sosvaensis
Sasonov, 1960 †
(FOSSIL)

Aulacostephanus
pinguis
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
sagittatus
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
yo
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
pischmae
Khudyaev, 1932 †
(FOSSIL)

Aulacostephanus
quenstedti
Durand, 1933 †
(FOSSIL)

Aulacostephanus
semieudoxus
Schneid, 1939 †
(FOSSIL)

Aulacostephanus
subhibridus
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
tobolicus
(Khudyaev, 1929 †)
(FOSSIL)

Aulacostephanus
hantzperguei
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
precontejeani
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
eudoxus
(A.V.M.D. D'Orbigny, 1850 †)
(FOSSIL)

Aulacostephanus
kirghisensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
lopsiensis
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
pseudolinealis
Mesezhnikov, 1969 †
(FOSSIL)

Aulacostephanus
undorae
Pavlov, 1886 †
(FOSSIL)

Aulacostephanus
volgensis
Vischniakoff, 1875 †
(FOSSIL)

Aulacostephanus
sosvaensis
Sasonov, 1960 †
(FOSSIL)

Aulacostephanus
pinguis
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
sagittatus
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
yo
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
pischmae
Khudyaev, 1932 †
(FOSSIL)

Aulacostephanus
quenstedti
Durand, 1933 †
(FOSSIL)

Aulacostephanus
semieudoxus
Schneid, 1939 †
(FOSSIL)

Aulacostephanus
subhibridus
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
tobolicus
(Khudyaev, 1929 †)
(FOSSIL)

Aulacostephanus
hantzperguei
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
precontejeani
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
eudoxus
(A.V.M.D. D'Orbigny, 1850 †)
(FOSSIL)

Aulacostephanus
kirghisensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
lopsiensis
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
pseudolinealis
Mesezhnikov, 1969 †
(FOSSIL)

Aulacostephanus
undorae
Pavlov, 1886 †
(FOSSIL)

Aulacostephanus
volgensis
Vischniakoff, 1875 †
(FOSSIL)

Aulacostephanus
sosvaensis
Sasonov, 1960 †
(FOSSIL)

Aulacostephanus
pinguis
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
sagittatus
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
yo
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
pischmae
Khudyaev, 1932 †
(FOSSIL)

Aulacostephanus
quenstedti
Durand, 1933 †
(FOSSIL)

Aulacostephanus
semieudoxus
Schneid, 1939 †
(FOSSIL)

Aulacostephanus
subhibridus
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
tobolicus
(Khudyaev, 1929 †)
(FOSSIL)

Aulacostephanus
hantzperguei
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
precontejeani
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
eudoxus
(A.V.M.D. D'Orbigny, 1850 †)
(FOSSIL)

Aulacostephanus
kirghisensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
lopsiensis
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
pseudolinealis
Mesezhnikov, 1969 †
(FOSSIL)

Aulacostephanus
undorae
Pavlov, 1886 †
(FOSSIL)

Aulacostephanus
volgensis
Vischniakoff, 1875 †
(FOSSIL)

Aulacostephanus
sosvaensis
Sasonov, 1960 †
(FOSSIL)

Aulacostephanus
pinguis
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
sagittatus
B. Ziegler, 1962 †
(FOSSIL)

Aulacostephanus
yo
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Aulacostephanus
pischmae
Khudyaev, 1932 †
(FOSSIL)

Aulacostephanus
quenstedti
Durand, 1933 †
(FOSSIL)

Aulacostephanus
semieudoxus
Schneid, 1939 †
(FOSSIL)

Aulacostephanus
subhibridus
Mesezhnikov, 1984 †
(FOSSIL)

Aulacostephanus
tobolicus
(Khudyaev, 1929 †)
(FOSSIL)

Aulacostephanus
hantzperguei
Borrelli, 2014 †
(FOSSIL)

Aulacostephanus
precontejeani
Borrelli, 2014 †
(FOSSIL)

Gravesia
gigas
(Zieten, 1830 †)
(FOSSIL)

Gravesia
irius
(A.V.M.D. D'Orbigny, 1850 †)
(FOSSIL)

Gravesia
portlandica
(De Loriol †)
(FOSSIL)

Microbiplices
guebhardi
(C.H. Oppenheimer, 1907 †)
(FOSSIL)

Microbiplices
microbiplex
(F.A. von Quenstedt, 1887 †)
(FOSSIL)

Microbiplices
varians
(C.H. Oppenheimer, 1907 †)
(FOSSIL)

Microbiplices
anglicus
Wierzbowski & Matyja, 2014 †
(FOSSIL)

Pictonia
gracilis
(Tornquist, 1896 †)
(FOSSIL)

Pictonia
seminudata
Buckman, 1924 †
(FOSSIL)

Pictonia
baylei
(Salfeld, 1913 †)
(FOSSIL)

Pictonia
indicatoria
Schneid, 1940 †
(FOSSIL)

Prorasenia
hardyi
Spath, 1935 †
(FOSSIL)

Prorasenia
heeri
(Moesch, 1867 †)
(FOSSIL)

Prorasenia
quenstedti
(Schindewolf, 1925 †)
(FOSSIL)

Rasenia
gothica
Schneid, 1961 †
(FOSSIL)

Rasenia
pseudouralensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
triplicata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
coronata
Mesezhnikov, 1969 †
(FOSSIL)

Rasenia
evoluta
(Spath, 1935 †)
(FOSSIL)

Rasenia
inconstans
(Spath, 1935 †)
(FOSSIL)

Rasenia
khatangensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
laevigata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
magnifica
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
optima
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
suburalensis
(Spath, 1925 †)
(FOSSIL)

Rasenia
aurita
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
borealis
(Spath, 1935 †)
(FOSSIL)

Rasenia
gothica
Schneid, 1961 †
(FOSSIL)

Rasenia
pseudouralensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
triplicata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
coronata
Mesezhnikov, 1969 †
(FOSSIL)

Rasenia
evoluta
(Spath, 1935 †)
(FOSSIL)

Rasenia
inconstans
(Spath, 1935 †)
(FOSSIL)

Rasenia
khatangensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
laevigata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
magnifica
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
optima
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
suburalensis
(Spath, 1925 †)
(FOSSIL)

Rasenia
aurita
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
borealis
(Spath, 1935 †)
(FOSSIL)

Rasenia
gothica
Schneid, 1961 †
(FOSSIL)

Rasenia
pseudouralensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
triplicata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
coronata
Mesezhnikov, 1969 †
(FOSSIL)

Rasenia
evoluta
(Spath, 1935 †)
(FOSSIL)

Rasenia
inconstans
(Spath, 1935 †)
(FOSSIL)

Rasenia
khatangensis
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
laevigata
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
magnifica
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
optima
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
suburalensis
(Spath, 1925 †)
(FOSSIL)

Rasenia
aurita
Mesezhnikov, 1984 †
(FOSSIL)

Rasenia
borealis
(Spath, 1935 †)
(FOSSIL)

Ringsteadia
bassettensis
Spath, 1935 †
(FOSSIL)

Ringsteadia
brandesi
Salfeld, 1917 †
(FOSSIL)

Ringsteadia
evoluta
Salfeld, 1917 †
(FOSSIL)

Ringsteadia
frequens
Salfeld, 1917 †
(FOSSIL)

Ringsteadia
marstonensis
Salfeld, 1917 †
(FOSSIL)

Ringsteadia
pseudocordata
(C.H. Blake & Hudleston, 1877 †)
(FOSSIL)

Ringsteadia
pseudoyo
Salfeld, 1917 †
(FOSSIL)

Ringsteadia
salfeldi
Dorn, 1925 †
(FOSSIL)

Ringsteadia
sphenoidea
Buckman, 1926 †
(FOSSIL)

Zonovia
ilovaiskii
Sasonov, 1960 †
(FOSSIL)

Zonovia
subelshamensis
Mesezhnikov, 1969 †
(FOSSIL)

Zonovia
uralensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)

Zonovia
ilovaiskii
Sasonov, 1960 †
(FOSSIL)

Zonovia
subelshamensis
Mesezhnikov, 1969 †
(FOSSIL)

Zonovia
uralensis
(A.V.M.D. D'Orbigny, 1845 †)
(FOSSIL)