-
Caecum abnormale
P.P. Carpenter, 1857
-
Caecum abreviatum
L. de Folin, 1870
-
Caecum achirona
(L. de Folin, 1867)
-
Caecum agoniatum
L. de Folin, 1867
-
Caecum amaltheanum
C. Hedley, 1899
-
Caecum amamiense
(T. Habe, 1978)
-
Meioceras ambyloceras
W.P. Woodring, 1959 † (FOSSIL)
-
Caecum amputatum
C. Hedley, 1894
-
Caecum amydroglyptum
H.A. Rehder, 1980
-
Caecum anellifer
H.A. Pilsbry & Johnson, 1917 † (FOSSIL)
-
Caecum angustum
L. de Folin, 1879
-
Ponderoceras annulatum
(T. Iredale & C.F. Laseron, 1957)
-
Caecum antillarum
P.P. Carpenter, 1858
-
Meioceras apanium
W.P. Woodring, 1928 † (FOSSIL)
-
Caecum arabicum
A. Issel, 1869
-
Caecum armoricum
L. de Folin, 1869
-
Parastrophia asturiana
L. de Folin, 1870
-
Caecum atlantidis
R.B. Watson, 1897
-
Caecum attenuatum
L. de Folin, 1879
-
Caecum auriculatum
L. de Folin, 1868
-
Caecum austrafricanum
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum australe
M. Pizzini & B.K. Raines, 2011
-
Parastrophia avaricosa
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum bahiahondaense
A.M. Strong & L.G. Hertlein, 1939
-
Caecum bakeri
(P. Bartsch, 1920)
-
Caecum (Brochina) banoni
É.A. Benoist, 1874 † (FOSSIL)
-
Caecum bathus
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum beaufortensis
Ward & B.W. Blackwelder, 1987 † (FOSSIL)
-
Caecum benhami
Goedert & B.K. Raines, 2016 † (FOSSIL)
-
Caecum bensoni
Goedert & B.K. Raines, 2016 † (FOSSIL)
-
Strebloceras bezanconi
(Cossmann, 1888) † (FOSSIL)
-
Ctiloceras bicarinatum
T. Iredale & C.F. Laseron, 1957
-
Caecum bicinctum
L. de Folin, 1870
-
Caecum bimamillatum
L. de Folin, 1867
-
Caecum bimarginatum
P.P. Carpenter, 1859
-
Caecum bipartitum
L. de Folin, 1870
-
Caecum borneoensis
L. de Folin, 1867
-
Meioceras boucheti
M. Pizzini & B.K. Raines, 2011
-
Caecum bounty
M. Pizzini & B.K. Raines, 2011
-
Caecum brasilicum
L. de Folin, 1874
-
Caecum brennani
B.K. Raines & M. Pizzini, 2009
-
Caecum breve
L. de Folin, 1867
-
Caecum bucerium
A.N. Golikov, 1967
-
Caecum californicum
W.H. Dall, 1885
-
Caecum calvertense
Martin, 1904 † (FOSSIL)
-
Caecum campanulatum
B.K. Raines & M. Pizzini, 2005
-
Caecum campe
H.A. Pilsbry & A.A. Olsson, 1941 † (FOSSIL)
-
Caecum carolinianum
W.H. Dall, 1892
-
Caecum carpenteri
(P. Bartsch, 1920)
-
Caecum carpenteri
G.P. Deshayes, 1861 † (FOSSIL)
-
Caecum caverna
R.G. Moolenbeek, M.J. Faber & C.G. Iliffe, 1989
-
Parastrophia challengeri
L. de Folin, 1880
-
Caecum chilense
J. Stuardo, 1962
-
Caecum chinense
L. de Folin, 1867
-
Caecum chipolanum
Gardner, 1947 † (FOSSIL)
-
Caecum cinctum
A.A. Olsson & A. Harbison, 1953
-
Caecum circumvolutum
Folin, 1867
-
Caecum clarkii
P.P. Carpenter, 1859
-
Caecum clarum
É. Lamy, 1910
-
Caecum clathratum
P.P. Carpenter, 1857
-
Ctiloceras clathratum
C. Hedley, 1902
-
Caecum clava
L. de Folin, 1867
-
Caecum cocoense
J.A. Sibaja-Cordero, K. García-Méndez & J.S. Troncoso, 2013
-
Caecum codoceoae
Gálvez & Huidobro, 2017
-
Caecum compactum
P.P. Carpenter, 1857
-
Caecum complanatum
L. de Folin, 1867
-
Jayella compressa
T. Iredale & C.F. Laseron, 1957
-
Caecum condylum
R.C. Moore, 1969
-
Caecum continens
J. van der Linden & R.G. Moolenbeek, 2000
-
Caecum cooki
M. Pizzini & B.K. Raines, 2011
-
Caecum cooperi
Smith, 1860
-
Meioceras cornucopiae
P.P. Carpenter, 1859
-
Parastrophia cornucopiae
(L. de Folin, 1869)
-
Strebloceras cornuoides
H.F. Carpenter † (FOSSIL)
-
Caecum corrugatulum
P.P. Carpenter, 1857
-
Caecum crassum
L. de Folin, 1870
-
Caecum crebricinctum
P.P. Carpenter, 1864
-
Caecum crispum
A.E. Verrill & K.J. Bush, 1900
-
Meioceras cubitatum
L. de Folin, 1868
-
Caecum cuspidatum
G.W. Chaster, 1896
-
Ctiloceras cyclicum
(R.B. Watson, 1886)
-
Caecum cycloferum
Folin, 1867
-
Parastrophia cygnicollis
(C. Hedley, 1904)
-
Caecum dakuwaqa
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum dalli
P. Bartsch, 1920
-
Caecum danielei
M. Pizzini & B.K. Raines, 2011
-
Caecum debile
A.E. Verrill & K.J. Bush, 1900
-
Caecum delicatulum
A.E. Verrill & K.J. Bush, 1900
-
Caecum derjugini
A.N. Golikov, 1967
-
Caecum dextroversum
P.P. Carpenter, 1857
-
Caecum digitulum
C. Hedley, 1904
-
Caecum diminutum
C.B. Adams, 1852
-
Caecum donmoorei
H.J. Mitchell-Tapping, 1979
-
Caecum eburneum
C.B. Adams, 1852
-
Strebloceras edwardsi
(Deshayes, 1861) † (FOSSIL)
-
Parastrophia elegans
(L. de Folin, 1880)
-
Caecum elegantissimum
P.P. Carpenter, 1859
-
Caecum eliezeri
R.S. Absalão, 1997
-
Caecum elongatum
P.P. Carpenter, 1857
-
Caecum engli
I. Nofroni, M. Pizzini & M. Oliverio, 1997
-
Parastrophia erseusi
R.N. Hughes, 1993
-
Caecum erucatum
L. de Folin, 1867
-
Caecum eunoi
I. Nofroni, M. Pizzini & M. Oliverio, 1997
-
Caecum exile
L. de Folin, 1875
-
Caecum farcimen
P.P. Carpenter, 1857
-
Caecum fibratum
L. de Folin & F. Bèrillon, 1874 † (FOSSIL)
-
Caecum fijiense
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum firmatum
C.B. Adams, 1852
-
Caecum (Defolinia) flemingi
(Gardner & T.H. Aldrich, 1919 †) (FOSSIL)
-
Caecum floridanum
W. Stimpson, 1851
-
Caecum folini
B.S. Kisch, 1959
-
Caecum geigeri
M. Pizzini & B.K. Raines, 2011
-
Caecum glabellum
(A. Adams, 1868)
-
Caecum glabriforme
P.P. Carpenter, 1857
-
Caecum glabrum
(G. Montagu, 1803)
-
Caecum gofasi
M. Pizzini & I. Nofroni, 2001
-
Caecum gracile
A.A. Gould, 1861
-
Caecum greensboroense
Martin, 1904 † (FOSSIL)
-
Caecum gulosum
C. Hedley, 1899
-
Caecum gurgulio
P.P. Carpenter, 1858
-
Caecum hemisphericum
L. de Folin, 1867
-
Caecum heptagonum
P.P. Carpenter, 1857
-
Caecum heterochromum
B.K. Raines & M. Pizzini, 2005
-
Strebloceras hinemoa
Finlay, 1931
-
Caecum imbricatum
Carpenter, 1858
-
Caecum impartitum
L. de Folin, 1867
-
Caecum imperfectum
L. de Folin, 1867
-
Caecum incisum
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum inclinatum
L. de Folin, 1869
-
Caecum infimum
L. de Folin, 1867
-
Caecum inflatum
L. de Folin, 1869
-
Caecum inhacaense
P.G. Albano & M. Pizzini, 2011
-
Caecum insculptum
P.P. Carpenter, 1857
-
Caecum insularum
R.C. Moore, 1969
-
Caecum interruptum
L. de Folin, 1867
-
Caecum intortum
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum irregulare
L. de Folin, 1867
-
Parastrophia japonica
Hinoide & T. Habe, 1978
-
Caecum japonicum
(T. Habe, 1978)
-
Caecum johnsoni
H.W. Winkley, 1908
-
Caecum jonatani
J. Espinosa, J.A. Ortea & R. Fernández-Garcés, 2007
-
Caecum jucundum
L. de Folin, 1867
-
Meioceras kajiyamai
T. Habe, 1963
-
Strebloceras kilburni
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum knysnaense
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum kontiki
M. Pizzini & B.K. Raines, 2011
-
Caecum laeve
C.B. Adams, 1852
-
Caecum lapita
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum laqueatum
C.B. Adams, 1852
-
Caecum larieyense
P. Lozouet, Lesport & Renard, 2001 † (FOSSIL)
-
Meioceras legumen
(C. Hedley, 1899)
-
Caecum leilae
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum limnetes
G.E. Long, 1972
-
Caecum limpidum
L. de Folin, 1874
-
Caecum lindae
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum lineicinctum
L. de Folin, 1880
-
Caecum liratocinctum
P.P. Carpenter, 1857
-
Caecum lohri
A.M. Strong & L.G. Hertlein, 1939
-
Caecum loyaltense
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum lucidum
L. de Folin, 1867
-
Caecum macrum
J. van der Linden & R.G. Moolenbeek, 2000
-
Caecum maestratii
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum magellanicum
S.I. Di Geronimo, S. Privitera & C. Valdovinos, 1995
-
Caecum malleatum
L. de Folin, 1867
-
Caecum mammillatum
Wood, 1842 † (FOSSIL)
-
Caecum maori
M. Pizzini & B.K. Raines, 2006
-
Caecum maraisi
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum marginatum
L. de Folin, 1869
-
Caecum marmoratum
L. de Folin, 1869
-
Caecum massambabense
R.S. Absalão, 1994
-
Caecum mauritianum
L. de Folin, 1867
-
Parastrophia mediterranea
(O.G. Costa, 1861)
-
Parastrophia megadattilida
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Parastrophia melanesiana
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum metamorphosicum
S.F.B. de Lima, F.N. Santos & R.S. Absalão, 2013
-
Caecum mexicanum
Collins, 1937 † (FOSSIL)
-
Caecum microcyclus
L. de Folin, 1879
-
Caecum microstriatum
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum mineuri
P. Lozouet, 1999 † (FOSSIL)
-
Cornuoides minor
T. Brown, 1827
-
Caecum minutum
L. de Folin, 1867
-
Caecum mirabile
L. de Folin, 1867
-
Caecum mirificum
L. de Folin, 1867
-
Caecum modestum
L. de Folin, 1868
-
Caecum monstrosum
C.B. Adams, 1852
-
Caecum moorei
L.N. Marincovich, 1973
-
Caecum morgan
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum multicostatum
L. de Folin, 1867
-
Caecum musorstomi
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum mutabile
L. de Folin, 1869
-
Caecum nemoralis
P. Lozouet, 2015
-
Caecum neocaledonicum
L. de Folin, 1867
-
Meioceras nitidum
(W. Stimpson, 1851)
-
Caecum oahuense
H.A. Pilsbry, 1921
-
Caecum obtusum
P.P. Carpenter, 1857
-
Caecum occidentale
(P. Bartsch, 1920)
-
Caecum occultum
L. de Folin, 1867
-
Caecum orcutti
W.H. Dall, 1885
-
Parastrophia ornata
A. Vannozzi, M. Pizzini & B.K. Raines, 2015
-
Caecum paradoxum
L. de Folin, 1867
-
Caecum parvulum
L. de Folin, 1867
-
Caecum parvum
C.B. Adams, 1852
-
Caecum pascuanum
B.K. Raines & M. Pizzini, 2005
-
Caecum patuxentium
Martin, 1904 † (FOSSIL)
-
Fartulum pertenuis
C.R. Laws, 1941 † (FOSSIL)
-
Strebloceras pizzinii
Vannozzi, 2016
-
Caecum planum
L. de Folin, 1874
-
Caecum plicatum
Carpenter, 1858
-
Caecum pollicare
P.P. Carpenter, 1859
-
Caecum profundicolum
P. Bartsch, 1920
-
Caecum properegulare
W.C. Mansfield, 1925 † (FOSSIL)
-
Caecum pulchellum
W. Stimpson, 1851
-
Parastrophia pulcherrima
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum (Defolinia) putnamensis
(W.C. Mansfield, 1924 †) (FOSSIL)
-
Caecum pygmaeum
C.B. Adams, 1852
-
Caecum quadratum
P.P. Carpenter, 1857
-
Parastrophia queenslandica
(T. Iredale & C.F. Laseron, 1957)
-
Caecum rapanuiense
B.K. Raines & M. Pizzini, 2005
-
Caecum regulare
Carpenter, 1858
-
Caecum rehderi
B.K. Raines & M. Pizzini, 2005
-
Caecum reversum
P.P. Carpenter, 1857
-
Meioceras rhinoceros
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum richthofeni
A.M. Strong & L.G. Hertlein, 1939
-
Caecum rijgersmai
D. De Jong & H.E. Coomans, 1988
-
Caecum rolani
M. Pizzini & I. Nofroni, 2001
-
Caecum rosanum
P. Bartsch, 1920
-
Caecum rostratum
L. de Folin, 1881
-
Caecum ryssotitum
L. de Folin, 1867
-
Meioceras sandwichense
L. de Folin, 1881
-
Caecum searleswoodii
P.P. Carpenter, 1859
-
Caecum semicinctum
L. de Folin, 1867
-
Caecum semilaeve
P.P. Carpenter, 1857
-
Caecum senegambianum
L. de Folin, 1870
-
Caecum sepimentum
L. de Folin, 1868
-
Jayella serrata
T. Iredale & C.F. Laseron, 1957
-
Caecum sinuatum
L. de Folin, 1867
-
Caecum skoglundae
M. Pizzini, B.K. Raines & I. Nofroni, 2007
-
Caecum smriglioi
M. Pizzini, I. Nofroni & A. Bonfitto, 2008
-
Caecum someri
(L. de Folin, 1867)
-
Caecum strangulatum
L. de Folin, 1867
-
Caecum striatum
L. de Folin, 1868
-
Ctiloceras striatum
C. Hedley, 1902
-
Caecum strictum
L. de Folin, 1871
-
Caecum strigosum
L. de Folin, 1868
-
Caecum suave
L. de Folin, 1869
-
Caecum subannulatum
L. de Folin, 1870
-
Caecum subaustrale
J. Stuardo, 1970
-
Caecum subconicum
P.P. Carpenter, 1857
-
Caecum subcylindratum
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum subflavum
L. de Folin, 1879
-
Caecum subimpressum
P.P. Carpenter, 1857
-
Caecum subobsoletum
P.P. Carpenter, 1857
-
Caecum subornatum
L. de Folin, 1869
-
Caecum subquadratum
Carpenter, 1859
-
Caecum subspirale
P.P. Carpenter, 1857
-
Caecum subvolutum
L. de Folin, 1874
-
Caecum succineum
L. de Folin, 1879
-
Parastrophia sumatrana
(K.H.J. Thiele, 1925)
-
Caecum superbum
L. de Folin, 1867
-
Caecum swinneni
I. Nofroni, M. Pizzini & M. Oliverio, 1997
-
Caecum taeniatum
L. de Folin, 1869
-
Caecum tahitianum
M. Pizzini & B.K. Raines, 2011
-
Caecum tenue
A.E. Verrill & K.J. Bush, 1900
-
Caecum tenuicostatum
L. de Folin, 1881
-
Caecum tenuiliratum
P.P. Carpenter, 1857
-
Caecum tenuistriatum
(O. Böttger, 1869 †) (FOSSIL)
-
Caecum teres
P.P. Carpenter, 1857
-
Caecum textile
L. de Folin, 1867
-
Caecum tornatum
A.E. Verrill & K.J. Bush, 1900
-
Caecum torquetum
L. de Folin, 1867
-
Caecum tortile
W.H. Dall, 1892
-
Caecum trachea
(G. Montagu, 1803)
-
Caecum trindadense
S.F.B. de Lima, F.N. Santos & R.S. Absalão, 2013
-
Caecum troglodyta
R.G. Moolenbeek, M.J. Faber & C.G. Iliffe, 1989
-
Meioceras tumidissimum
L. de Folin, 1869
-
Caecum tumidum
Carpenter, 1858 † (FOSSIL)
-
Enigmerces turbinata
T. Iredale & C.F. Laseron, 1957
-
Caecum uncinatum
L. de Folin, 1867
-
Caecum undatum
P.P. Carpenter, 1857
-
Caecum uvea
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum validum
L. de Folin, 1867
-
Caecum vanuatuarum
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Parastrophia vanuatuensis
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum varanoi
M. Pizzini, I. Nofroni & A. Bonfitto, 2008
-
Ctiloceras variciferum
T. Iredale & C.F. Laseron, 1957
-
Caecum variegatum
L. de Folin, 1867
-
Caecum venosum
L. de Folin, 1867
-
Caecum venustum
L. de Folin, 1867
-
Caecum veracruzanum
Collins, 1937 † (FOSSIL)
-
Caecum verai
Moreno, A. Peñas & E. Rolán, 2003 † (FOSSIL)
-
Caecum vertebrale
C. Hedley, 1899
-
Caecum vicinum
L. de Folin, 1870
-
Caecum virginiae
M. Pizzini, B.K. Raines & A. Vannozzi, 2013
-
Caecum (Defolinia) virginianum
(Meyer, 1888 †) (FOSSIL)
-
Caecum vitreum
P.P. Carpenter, 1859
-
Caecum wami
B.K. Raines & M. Pizzini, 2009
-
Caecum wayae
M. Pizzini & I. Nofroni, 2001
-
Caecum zaagmani
D. De Jong & H.E. Coomans, 1988
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