Adontorhina
cyclia
S.S. Berry, 1947

Adontorhina
sphaericosa
P.H. Scott, 1986

Adontorhina
keegani
P.J. Barry & J.B. McCormack, 2007

Adontorhina
similis
P.J. Barry & J.B. McCormack, 2007

Adontorhina
zelayai
P.H. Valentich-Scott & E.V. Coan, 2012

Adontorhina
pisum
(W.H. Dall, 1908)

Adontorhina
lynnae
P.H. Valentich-Scott, 2000

Adontorhina
transversa
(C.M. Payne & J.A. Allen, 1991)

Ascetoaxinus
quatsinoensis
P.G. Oliver & M.A. Frey, 2014

Axinopsida
orbiculata
(G.O. Sars, 1878)

Axinopsida
orbiculata
(G.O. Sars, 1878)

Axinopsida
serricata
(P.P. Carpenter, 1864)

Axinopsida
suborbiculata
(A. Adams, 1862)

Axinopsida
subquadrata
(C.B. Adams, 1862)

Axinopsida
pegodonta
J.D. Stilwell & Zinsmeister, 1992 †
(FOSSIL)

Axinopsida
marisae
Welle & Nagel 2003 †
(FOSSIL)

Axinulus
careyi
F.R. Bernard, 1979

Axinulus
croulinensis
(J.G. Jeffreys, 1847)

Axinulus
eumyarius
(M. Sars, 1870 †)
(FOSSIL)

Axinulus
ferrugineus
R. Winckworth, 1932

Axinulus
cookianus
C.A. Fleming, 1950 †
(FOSSIL)

Axinulus
debilis
K.H.J. Thiele, 1912

Axinulus
inaequalis
A.E. Verrill & K.J. Bush, 1898

Axinulus
hadalis
(T.A. Okutani, K. Fujikura & S. Kojima, 1999)

Axinulus
albigena
(C. Hedley, 1907 †)
(FOSSIL)

Axinulus
bongraini
(É. Lamy, 1911)

Axinulus
antarcticus
D.G. Zelaya, 2010

Axinulus
thackergeigeri
P.H. Valentich-Scott & E.V. Coan, 2012

Axinulus
pisum
W.H. Dall, 1908

Axinulus
germanicus
Janssen, 1972 †
(FOSSIL)

Axinulus
philippinensis
Allen, 2015

Axinus
ferrugineus
É.A.A. Locard, 1886

Axinus
grandis
(A.E. Verrill & S. Smith in A.E. Verrill, 1885)

Axinus
dubius
P. Dautzenberg & H. Fischer, 1897

Axinus
croulinensis
É.A.A. Locard, 1898

Axinus
cascadiensis
P.G. Oliver & A.M. Holmes, 2007

Axinus
concentricus
J.E.S. Moore, 1861 †
(FOSSIL)

Axinus
obscurus
Sowerby, 1821 †
(FOSSIL)

Axinus
parvus
J. Brown, 1841 †
(FOSSIL)

Axinus
securus
Shumard, 1859 †
(FOSSIL)

Axinus
flexuosus
J.G. Jeffreys, 1864

Axinus
sculpta
(Phillips 1829) †
(FOSSIL)

Channelaxinus
benthicola
(T. Iredale, 1930)

Channelaxinus
adelaideanus
(T. Iredale, 1930)

Channelaxinus
excavatus
(W.H. Dall, 1901)

Channelaxinus
investigatoris
(E.A. Smith, 1895)

Channelaxinus
oliveri
P.H. Valentich-Scott & E.V. Coan, 2012

Conchocele
novaeguinensis
T.A. Okutani, 2002

Conchocele
compacta
Ishizaki, 1942

Conchocele
fuegiensis
(W.H. Dall, 1890)

Conchocele
bathyaulax
C.J.S. Hickman, 2015 †
(FOSSIL)

Conchocele
taylori
C.J.S. Hickman, 2015 †
(FOSSIL)

Conchocele
kamtschatica
(L. krishtifovich, 1984 †)
(FOSSIL)

Conchocele
inflata
(Yabe & S. Nomura, 1925 †)
(FOSSIL)

Conchocele
snatolensis
L. Krishtofovich, 1936 †
(FOSSIL)

Conchocele
quadrata
Yabe & S. Nomura, 1925 †
(FOSSIL)

Genaxinus
cookianus
(C.A. Fleming, 1950 †)
(FOSSIL)

Genaxinus
otagoensis
(H.H. Suter, 1913 †)
(FOSSIL)

Genaxinus
albigena
(C. Hedley, 1907 †)
(FOSSIL)

Leptaxinus
minutus
A.E. Verrill & K.J. Bush, 1898

Leptaxinus
indusarium
P.G. Oliver & N.L. Levin, 2006

Leptaxinus
incrassatus
(J.G. Jeffreys, 1876)

Maorithyas
flemingi
A.W.B. Powell, 1955

Maorithyas
marama
C.A. Fleming, 1950

Maorithyas
miyadii
T. Habe, 1951

Mendicula
oblonga
(T.A. de M. Monterosato, 1878)

Mendicula
pygmaea
(A.E. Verrill & K.J. Bush, 1898)

Mendicula
carrozae
(B.S. Payne & J.A. Allen, 1991)

Mendicula
inflata
(B.S. Payne & J.A. Allen, 1991)

Mendicula
ovata
(A.E. Verrill & K.J. Bush, 1898)

Mendicula
verrilli
(B.S. Payne & J.A. Allen, 1991)

Mendicula
memorata
T. Iredale, 1924

Mendicula
sudamericana
D.G. Zelaya, 2010

Mendicula
ockelmanni
(Keuning & C.F.C. Schander, 2010)

Mendicula
transversa
C.M. Payne & J.A. Allen, 1991

Parathyasira
granulosa
(T.A. de M. Monterosato, 1874)

Parathyasira
resupina
T. Iredale, 1930

Parathyasira
verconis
(G.F. Angas, 1877)

Parathyasira
dearborni
(D. Nicol, 1965)

Parathyasira
neozelanica
T. Iredale, 1930

Parathyasira
kaireiae
T.A. Okutani, K. Fujikura & S. Kojima, 1999

Parathyasira
magellanica
(W.H. Dall, 1901)

Parathyasira
subcircularis
(B.S. Payne & J.A. Allen, 1991)

Parathyasira
bamberi
P.G. Oliver, 2015

Parathyasira
flemingi
P.A. Maxwell, 1992 †
(FOSSIL)

Parathyasira
notosulca
J.D. Stilwell & Zinsmeister, 1992 †
(FOSSIL)

Spinaxinus
emicatus
P.G. Oliver, 2013

Spinaxinus
phrixicus
P.G. Oliver, 2013

Spinaxinus
caldarium
Oliver & Rodrigues, 2017

Tauraxinus
ottnangensis
(Sacco 1901) †
(FOSSIL)

Thyasira
tumidus
L.A. Reeve, 1850

Thyasira
watsoni
E.A. Smith, 1885

Thyasira
alleni
F. Carrozza, 1981

Thyasira
barbarensis
(W.H. Dall, 1890)

Thyasira
biplicata
(R.A. Philippi, 1836)

Thyasira
cygnus
W.H. Dall, 1916

Thyasira
dilatata
A. Gaglini, 1991

Thyasira
elliptica
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
exintermedius
A. Gaglini, 1992

Thyasira
flexuosa
(G. Montagu, 1803)

Thyasira
sarsii
(R.A. Philippi, 1845)

Thyasira
pyriformis
W.H. Dall, 1886

Thyasira
orbiculata
G. Seguenza, 1876

Thyasira
incrassata
(J.G. Jeffreys, 1876)

Thyasira
obsoleta
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
plicata
A.E. Verrill, 1885

Thyasira
planata
(J.G. Jeffreys, 1882)

Thyasira
rotunda
J.G. Jeffreys, 1881

Thyasira
simplex
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
striata
(R. Sturany, 1896)

Thyasira
subovata
(J.G. Jeffreys, 1881)

Thyasira
subtrigona
J.G. Jeffreys, 1858

Thyasira
succisa
(J.G. Jeffreys, 1876)

Thyasira
tortuosa
(J.G. Jeffreys, 1881)

Thyasira
triseriata
Unknown

Thyasira
trisinuata
(A.V.M.D. D'Orbigny, 1853)

Thyasira
benthicola
T. Iredale, 1930

Thyasira
verconis
G.F. Angas, 1877

Thyasira
bisecta
T.A. Conrad, 1849

Thyasira
alta
A.E. Verrill & K.J. Bush, 1898

Thyasira
debilis
(K.H.J. Thiele, 1912)

Thyasira
elegans
T.A. Okutani, 1968

Thyasira
tricarinata
W.H. Dall, 1916

Thyasira
flexuosa
E. Forbes, 1845

Thyasira
hexangulata
T.A. Okutani, 1962

Thyasira
imamurai
T.A. Okutani, 1968

Thyasira
japonica
A. Adams, 1862

Thyasira
kawamurai
T. Habe, 1951

Thyasira
kelliaeformis
T.A. Okutani, 1962

Thyasira
nuttalii
T.A. Conrad, 1834

Thyasira
obliqua
T.A. Okutani, 1968

Thyasira
otagoensis
H.H. Suter, 1913 †
(FOSSIL)

Thyasira
oyamai
T. Habe, 1962

Thyasira
ozawai
M. Yokoyama, 1926

Thyasira
yamakawaensis
T. Habe, 1949

Thyasira
gouldii
R.A. Philippi, 1845

Thyasira
inflata
B.S. Payne & J.A. Allen, 1991

Thyasira
atlantica
B.S. Payne & J.A. Allen, 1991

Thyasira
conia
W.H. Dall & C.T. Simpson, 1901

Thyasira
fuegiensis
(W.H. Dall, 1890)

Thyasira
subequatoria
B.S. Payne & J.A. Allen, 1991

Thyasira
acuticarinata
(E.A. Smith, 1895)

Thyasira
luzonicus
(E.A. Smith, 1895)

Thyasira
albigena
C. Hedley, 1907 †
(FOSSIL)

Thyasira
cumingi
(P. Fischer, 1861)

Thyasira
borshengi
T.A. Okutani & T.C. Lan, 1999

Thyasira
subcircularis
B.S. Payne & J.A. Allen, 1991

Thyasira
dunbari
I. Lubinsky, 1976

Thyasira
capax
A.A. Gould, 1850

Thyasira
nuttallii
T.A. Conrad, 1837

Thyasira
pajaroanus
T.A. Conrad, 1857 †
(FOSSIL)

Thyasira
eutornus
J.R. le B. Tomlin, 1921

Thyasira
tokunagai
(J.T. Kuroda & T. Habe, 1951)

Thyasira
induta
C. Hedley, 1907

Thyasira
biscayensis
B.S. Payne & J.A. Allen, 1991

Thyasira
falklandica
(E.A. Smith, 1885)

Thyasira
methanophila
P.G. Oliver & J. Sellanes, 2005

Thyasira
ockelmanni
Keuning & C.F.C. Schander, 2010

Thyasira
patagonica
D.G. Zelaya, 2010

Thyasira
scotiana
D.G. Zelaya, 2009

Thyasira
southwardae
P.G. Oliver & A.M. Holmes, 2006

Thyasira
ultima
B.S. Payne & J.A. Allen, 1991

Thyasira
vulcolutre
C.L. Rodrigues & P.G. Oliver, 2008

Thyasira
unilateralis
K.H. Barnard, 1964

Thyasira
peregrina
T. Iredale, 1930

Thyasira
anassa
P.G. Oliver, 2015

Thyasira
scotiae
P.G. Oliver & J. Drewery, 2014

Thyasira
phrygiana
Miloslavskaya, 1977

Thyasira
austrosulca
J.D. Stilwell & al., 2004 †
(FOSSIL)

Thyasira
chilensis
R.A. Philippi, 1887 †
(FOSSIL)

Thyasira
folgeri
Wagner & Schilling, 1923 †
(FOSSIL)

Thyasira
montanita
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
nana
Khomenko, 1929 †
(FOSSIL)

Thyasira
olssoni
Clark & J.W. Durham, 1946 †
(FOSSIL)

Thyasira
peruviana
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
rashidi
Abbass, 1972 †
(FOSSIL)

Thyasira
staufti
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
tessaria
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
brongniarti
G.P. Deshayes, 1857 †
(FOSSIL)

Thyasira
goodhalli
J. de C. Sowerby, 1837 †
(FOSSIL)

Thyasira
beui
K. Amano, C. Little & al., 2015

Thyasira
marwicki
K. Amano, C. Little, K.A. Campbell, R.G. Jenkins & Saeth

Thyasira
baca
Devjatilova, 1981 †
(FOSSIL)

Thyasira
bartrumi
Powell, 1935 †
(FOSSIL)

Thyasira
minoensis
Itoigawa, 1960 †
(FOSSIL)

Thyasira
mironovi
Kalishevich, 1981 †
(FOSSIL)

Thyasira
motutaraensis
Powell, 1935 †
(FOSSIL)

Thyasira
nakazawai
E. Matsumoto, 1971 †
(FOSSIL)

Thyasira
tanabei
S. Kiel, K. Amano & R.G. Jenkins, 2008 †
(FOSSIL)

Thyasira
uncinata
Kalikevich, 1981 †
(FOSSIL)

Thyasira
xylodia
S. Kiel & Goedert, 2007 †
(FOSSIL)

Thyasira
polygona
(J.G. Jeffreys, 1864)

Thyasira
becca
†
(FOSSIL)

Thyasira
becca
Kauffman, 1967 †
(FOSSIL)

Thyasira
pervulgata
L. Krishtofovich, 1936 †
(FOSSIL)

Thyasira
uncinata
Kalishevich, 1981 †
(FOSSIL)

Thyasira
capitanea
Åström & Oliver, 2017

Thyasira
tumidus
L.A. Reeve, 1850

Thyasira
watsoni
E.A. Smith, 1885

Thyasira
alleni
F. Carrozza, 1981

Thyasira
barbarensis
(W.H. Dall, 1890)

Thyasira
biplicata
(R.A. Philippi, 1836)

Thyasira
cygnus
W.H. Dall, 1916

Thyasira
dilatata
A. Gaglini, 1991

Thyasira
elliptica
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
exintermedius
A. Gaglini, 1992

Thyasira
flexuosa
(G. Montagu, 1803)

Thyasira
sarsii
(R.A. Philippi, 1845)

Thyasira
pyriformis
W.H. Dall, 1886

Thyasira
orbiculata
G. Seguenza, 1876

Thyasira
incrassata
(J.G. Jeffreys, 1876)

Thyasira
obsoleta
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
plicata
A.E. Verrill, 1885

Thyasira
planata
(J.G. Jeffreys, 1882)

Thyasira
rotunda
J.G. Jeffreys, 1881

Thyasira
simplex
(A.E. Verrill & K.J. Bush, 1898)

Thyasira
striata
(R. Sturany, 1896)

Thyasira
subovata
(J.G. Jeffreys, 1881)

Thyasira
subtrigona
J.G. Jeffreys, 1858

Thyasira
succisa
(J.G. Jeffreys, 1876)

Thyasira
tortuosa
(J.G. Jeffreys, 1881)

Thyasira
triseriata
Unknown

Thyasira
trisinuata
(A.V.M.D. D'Orbigny, 1853)

Thyasira
benthicola
T. Iredale, 1930

Thyasira
verconis
G.F. Angas, 1877

Thyasira
bisecta
T.A. Conrad, 1849

Thyasira
alta
A.E. Verrill & K.J. Bush, 1898

Thyasira
debilis
(K.H.J. Thiele, 1912)

Thyasira
elegans
T.A. Okutani, 1968

Thyasira
tricarinata
W.H. Dall, 1916

Thyasira
flexuosa
E. Forbes, 1845

Thyasira
hexangulata
T.A. Okutani, 1962

Thyasira
imamurai
T.A. Okutani, 1968

Thyasira
japonica
A. Adams, 1862

Thyasira
kawamurai
T. Habe, 1951

Thyasira
kelliaeformis
T.A. Okutani, 1962

Thyasira
nuttalii
T.A. Conrad, 1834

Thyasira
obliqua
T.A. Okutani, 1968

Thyasira
otagoensis
H.H. Suter, 1913 †
(FOSSIL)

Thyasira
oyamai
T. Habe, 1962

Thyasira
ozawai
M. Yokoyama, 1926

Thyasira
yamakawaensis
T. Habe, 1949

Thyasira
gouldii
R.A. Philippi, 1845

Thyasira
inflata
B.S. Payne & J.A. Allen, 1991

Thyasira
atlantica
B.S. Payne & J.A. Allen, 1991

Thyasira
conia
W.H. Dall & C.T. Simpson, 1901

Thyasira
fuegiensis
(W.H. Dall, 1890)

Thyasira
subequatoria
B.S. Payne & J.A. Allen, 1991

Thyasira
acuticarinata
(E.A. Smith, 1895)

Thyasira
luzonicus
(E.A. Smith, 1895)

Thyasira
albigena
C. Hedley, 1907 †
(FOSSIL)

Thyasira
cumingi
(P. Fischer, 1861)

Thyasira
borshengi
T.A. Okutani & T.C. Lan, 1999

Thyasira
subcircularis
B.S. Payne & J.A. Allen, 1991

Thyasira
dunbari
I. Lubinsky, 1976

Thyasira
capax
A.A. Gould, 1850

Thyasira
nuttallii
T.A. Conrad, 1837

Thyasira
pajaroanus
T.A. Conrad, 1857 †
(FOSSIL)

Thyasira
eutornus
J.R. le B. Tomlin, 1921

Thyasira
tokunagai
(J.T. Kuroda & T. Habe, 1951)

Thyasira
induta
C. Hedley, 1907

Thyasira
biscayensis
B.S. Payne & J.A. Allen, 1991

Thyasira
falklandica
(E.A. Smith, 1885)

Thyasira
methanophila
P.G. Oliver & J. Sellanes, 2005

Thyasira
ockelmanni
Keuning & C.F.C. Schander, 2010

Thyasira
patagonica
D.G. Zelaya, 2010

Thyasira
scotiana
D.G. Zelaya, 2009

Thyasira
southwardae
P.G. Oliver & A.M. Holmes, 2006

Thyasira
ultima
B.S. Payne & J.A. Allen, 1991

Thyasira
vulcolutre
C.L. Rodrigues & P.G. Oliver, 2008

Thyasira
unilateralis
K.H. Barnard, 1964

Thyasira
peregrina
T. Iredale, 1930

Thyasira
anassa
P.G. Oliver, 2015

Thyasira
scotiae
P.G. Oliver & J. Drewery, 2014

Thyasira
phrygiana
Miloslavskaya, 1977

Thyasira
austrosulca
J.D. Stilwell & al., 2004 †
(FOSSIL)

Thyasira
chilensis
R.A. Philippi, 1887 †
(FOSSIL)

Thyasira
folgeri
Wagner & Schilling, 1923 †
(FOSSIL)

Thyasira
montanita
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
nana
Khomenko, 1929 †
(FOSSIL)

Thyasira
olssoni
Clark & J.W. Durham, 1946 †
(FOSSIL)

Thyasira
peruviana
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
rashidi
Abbass, 1972 †
(FOSSIL)

Thyasira
staufti
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
tessaria
A.A. Olsson, 1931 †
(FOSSIL)

Thyasira
brongniarti
G.P. Deshayes, 1857 †
(FOSSIL)

Thyasira
goodhalli
J. de C. Sowerby, 1837 †
(FOSSIL)

Thyasira
beui
K. Amano, C. Little & al., 2015

Thyasira
marwicki
K. Amano, C. Little, K.A. Campbell, R.G. Jenkins & Saeth

Thyasira
baca
Devjatilova, 1981 †
(FOSSIL)

Thyasira
bartrumi
Powell, 1935 †
(FOSSIL)

Thyasira
minoensis
Itoigawa, 1960 †
(FOSSIL)

Thyasira
mironovi
Kalishevich, 1981 †
(FOSSIL)

Thyasira
motutaraensis
Powell, 1935 †
(FOSSIL)

Thyasira
nakazawai
E. Matsumoto, 1971 †
(FOSSIL)

Thyasira
tanabei
S. Kiel, K. Amano & R.G. Jenkins, 2008 †
(FOSSIL)

Thyasira
uncinata
Kalikevich, 1981 †
(FOSSIL)

Thyasira
xylodia
S. Kiel & Goedert, 2007 †
(FOSSIL)

Thyasira
polygona
(J.G. Jeffreys, 1864)

Thyasira
becca
†
(FOSSIL)

Thyasira
becca
Kauffman, 1967 †
(FOSSIL)

Thyasira
pervulgata
L. Krishtofovich, 1936 †
(FOSSIL)

Thyasira
uncinata
Kalishevich, 1981 †
(FOSSIL)

Thyasira
capitanea
Åström & Oliver, 2017