SUBCLASS: DIAPSIDA OSBORN, 1903

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA BENTON, 1983

OR

INFRACLASS: EURYAPSIDA COLBERT, 1945
= SUBCLASS: EURYAPSIDA COLBERT, 1945
= SYNAPTOSAURIA
= SUBCLASS: SAUROPTERYGIA OWEN, 1860
= SUBCLASS: SAUROPTERYGIAMORPHA

= ORDER: THEROMORPHA COPE, 1890 (partim) as per HUENE, 1956

SUPERORDER: SAUROPTERYGIA OWEN, 1860

Incertae sedis

Gen. sp indet.

Family: SAUROSPHARGIDAE Li, Rieppel, Wu, Zhao, & Wang, 2011

Genus: Saurosphargis VOLZ, 1903-1908 (nomen dubium)
= Saursophargis VOLZ mscr FRECH, 1903-08
= Saurosphargis FRECH, 1903 (sic)
S. volzi HUENE, 1936 (Type)

Genus: Sinosaurosphargis LI, RIEPPEL, WU, ZHAO, & WANG, 2011
S. yunguiensis LI, RIEPPEL, WU, ZHAO, & WANG, 2011

PARVORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994
= ORDER: EOSAUROPTRYGIA, 1994

Incertae sedis

Genus: Diandongosaurus SHANG, WU & LI, 2010
D. acutidentatus SHANG, WU & LI, 2010 (Type)

Genus: Majiashanosaurus JIANG, MONTANI, TINTORI, RIEPPEL, CHEN, HUANG, ZHANG, SUN & JI, 2014
M. discocoracoidis JIANG, MONTANI, TINTORI, RIEPPEL, CHEN, HUANG, ZHANG, SUN & JI, 2014 (Type)

Genus: Qianxisaurus CHENG, WU, SATO & SHAN, 2012
Q. chajiangensis CHENG, WU, SATO & SHAN, 2012 (Type)

Genus: Wumengosaurus JIANG, RIEPPEL, MONTANI, HAO, SUN, SCHMITZ, & SUN, 2008
W. delicatomandibularis JIANG, RIEPPEL, MONTANI, HAO, SUN, SCHMITZ, & SUN, 2008 (Type)

Gen. sp indet.

ORDER: PACHYPLEUROSAURIA SANZ, 1980
= SUBORDER: PACHYPLEUROSAURIA NOPCSA, 1928

Family: KEICHOUSAURIDAE Young, 1965

Genus: Dianopachysaurus LIU, RIEPPEL, JIANG, AITCHISON, MONTANI, ZHANG, ZHOU & SUN, 2011
D. dingi LIU, RIEPPEL, JIANG, AITCHISON, MONTANI, ZHANG, ZHOU & SUN, 2011 (Type)

Genus: Keichousaurus YOUNG, 1958
K. hui YOUNG, 1958 (Type)
K. yuananensis YOUNG, 1965
K. lusiensis GONZUI, 1978
K. sp

Family: PACHYPLEUROSAURIDAE Nopcsa, 1928
= Family: HANOSAURIDAE Young & Dong, 1977
= Subfamily: PACHYPLEUROSAURINAE Nopcsa, 1928
= Family: PACHYPLEURIDAE Lydekker, 1889

Genus: Anarosaurus DAMES, 1890
A. pumilis DAMES, 1890 (Type)
A. heterodontus RIEPPEL & KEBANG, 1995
A. sp

Genus: Dactylosaurus GURICH, 1884
D. gracilis GURICH, 1884 (Type)
= Dactylosaurus schroederi NOPSCA, 1928

Genus: Hanosaurus YOUNG, 1972
H. hupehensis YOUNG, 1972 (Type)

Genus: Neusticosaurus SEELEY, 1882
= Pachypleura CORNALIA, 1854 non
= Pachypleurosaurus BROILI, 1927
= Psilotrachelosaurus NOPCSA, 1928
N. pusillus (FRAAS, 1881) SEELEY, 1882 (Type)
= Simosaurus pusillus FRAAS, 1881
= Neusticosaurus (Pachypleura) pusillus (FRAAS, 1881)
= Neusticosaurus pygmaeus FRAAS, 1896
N. edwardsi (CORNALIA, 1854) SANDER, 1989
= Pachypleura edwardsii CORNALIA, 1854
= Neusticosaurus (Pachypleura) edwardsii (CORNALIA, 1854) LYDEKKER, 1889
= Pachypleurosaurus (Pachypleura) edwardsii (CORNALIA, 1854) BROILI, 1927
= Pachypleurosaurus edwardsii (CORNALIA, 1854) BROILI, 1927
= Pachypleurosaurus edwardsii (CORNALIA, 1854) NOPCSA, 1928
= Pachypleurosaurus edwardsi (CORNALIA, 1854) NOPCSA, 1928
N. toeplitschi (NOPSCA, 1928) RIEPPEL & LIN, 1995
= Psilotrachelosaurus toeplitschi NOPSCA, 1928
N. peyeri SANDER, 1989
= Pachypleurosaurus edwardsii CORNALIA (partim)
N. sp

Genus: Odoiporosaurus RENESTO, BINELLI & HAGDORN, 2014
O. teruzzii RENESTO, BINELLI & HAGDORN, 2014 (Type)

Genus: Serpianosaurus RIEPPEL, 1989
S. mirigiolensis RIEPPEL, 1989 (Type)
= Pachypleurosaurus edwardsi CORNALIA (partim) PEYER, 1932
= Pachypleurosaurus edwardsi CORNALIA (partim) ZANGERL, 1935

Genus: Nova LIU, RIEPPEL, AITCHISON & ZHANG, 2010

Incertae sedis

Genus: Charitosaurus MEYER, 1851 (nomen dubium)
= Charitodon MEYER 1838 (sic)
C. tschudii MEYER, 1851 (Type)

Genus: Neusticosaurus non SEELEY, 1882
N. staubi (KUHN-SCHYNDER, 1959) (nomen dubium)
= Pachypleurosaurus staubi KUHN-SCHYNDER, 1959 (nomen dubium)

Gen. sp indet.

ORDER: NOTHOSAURIFORMES STORRS, 1991

SUBORDER: EUSAUROPTERYGIA TSCHANZ, 1989

Incertae sedis

Gen. sp indet.

INFRAORDER: NOTHOSAUROIDEA BAUR, 1889
= SUBORDER: NOTHOSAURIA SEELEY, 1882
= SUBORDER: SIMOSAURIA RIEPPEL, 2000

Superfamily: SIMOSAUROIDEA Gervais, 1859 (sensu Rieppel, 2000)

Family: SIMOSAURIDAE Gervais, 1859

Genus: Simosaurus MEYER, 1842
= Partanosaurus SKUPNOS, 1893
= Parthanosaurus SKUPNOS 1893 (sic)
S. gaillardoti MEYER, 1842 (Type)
= Simosaurus cf. gaillardoti MEYER, 1842
= Partanosaurus zittlei SKUPHOS, 1893
= Parthanosaurus zittlei SKUPHOS, 1893 (sic)
= Simosaurus guilelmi MEYER, 1855
= Simosaurus guilielmi var. angusticeps n. var. HUENE, 1959
S. sp

Incerate sedis

Genus: Simosaurus non MEYER, 1842 (nomen dubium)
S. mougeoti MEYER, 1842 (nomen dubium)

Superfamily: NOTHOSAURIA Baur, 1889

Family: GERMANOSAURIDAE Rieppel, 2000

Genus: Germanosaurus NOPSCA, 1928
= Eurysaurus FRECH, 1903 non ARTHABER, 1924
G. latissimus (GURICH, 1891) NOPSCA, 1928 (Type)
= Nothosaurus latissimus GURICH, 1891
= Cymatosaurus (Nothosaurus) latissimus (GURICH, 1891) SCHRAMMEN, 1899
= Nothosaurus (Eurysaurus) latissimus (GURICH, 1891) FRECH, 1903
= Eurysaurus latissimus (GURICH, 1891) SCHRODER, 1914
G. graciles (GURICH, 1891)
= Nothosaurus graciles GURICH, 1891
= Eurysaurus graciles (GURICH, 1891)
G. schafferi (ARCHABER, 1924) KUHN, 1934
= Eurysaurus schafferi ARCHABER, 1924
= Cymatosaurus (Germanosaurus) schafferi (ARCHABER, 1924) HUENE, 1944
= Cymatosaurus schafferi (ARCHABER, 1924) KUHN, 1964

Family: NOTHOSAURIDAE Baur, 1889
= Family: CEREIOSAURIDAE Kuhn-Schnyder, 1990
= Family: LARIOSAURIDAE Gervais, 1859
= Subfamily: NOTHOSAURINAE Baur, 1889
= Subfamily: PRONEUSTIOCOSAURINAE Huene, 1948

Genus: Lariosaurus CURINOI 1847
= Ceresiosaurus PEYER 1931
= Deirosaurus OWEN 1854 (nomen dubium)
= Eupodosaurus BOULENGER, 1891
= Macromerosaurus CURIONI, 1847 emend. CURIONI, 1854
= Micronothosaurus HAAS, 1963
= Phygosaurus ARTHABER, 1924
= Rhaticonia BROILI 1927
= Silvestrosaurus KUHN-SCHNYDER 1990
L. balsami CURINOI, 1847 (Type)
= Macromerosaurus plinii CURIONI, 1847 emend. CURIONI, 1854
= Deirosaurus italicus OWEN, 1854 (nomen dubium)
= Phygosaurus balsami ARTHABER, 1924 non CURINOI, 1847
= Lariosaurus balsami varietas plinii CURINOI, 1847
= Lariosaurus balsami curioni BALSAMO-CRIVELLI, 1839
= Eupodosaurus longobardicus BOULENGER, 1891
= Proneusticosaurus carinthiacus ARTHABER, 1924
= Rhaeticonia rothpletzi BROILI, 1927
= Lariosaurus lavizzarii KUHN-SCHYNDER, 1987
L. calcagnii (PEYER, 1931) RIEPPEL, 1988
= Ceresiosaurus calcagnii PEYER, 1931
L. stensioi (HAAS, 1963) RIEPPEL, MAZIN & TCHERNOV, 1999
= Micronothosaurus stensioi HAAS, 1963
L. buzzii TSCHANZ, 1989
= Silvestrosaurus buzzii KUHN-SCHNYDER, 1990
L. valceresii TINTORI & RENESTO, 1990
L. curionii RIEPPEL, 1998
L. xingyiensis LI, LIU & RIEPPEL, 2002
L. hongguoensis JIANG, MAISCH, SUN, SUN & HAO, 2006
= Lariosaurus nova JIANG, HAO, SUN & SUN, 2005
L. sp

Genus: Nothosaurus MUNSTER, 1834
= Chondriosaurus ROMER, 1966 (sic)
= Conchiosaurus MEYER, 1834 (nomen nudum)
= Conchriosaurus MEYER, 1838 (sic)
= Chondriosaurus MEYER, 1838 (nomen nudum)
= Dracontosaurus AGASSIZ, 1846
= Dracosaururus ROMER, 1966 (sic)
= Elmosaurus HUENE, 1957
= Dracosaurus AGASSIZ, 1846
= Kolposaurus SKUPHOS, 1893
= Menodon MEYER, 1838
= Nothosaurus MUNSTER, 1834 (nomen conservandum)
= Oligolycus FRISTCH, 1894
= Opeosaurus MEYER, 1847-1855
= Paranothosaurus PEYER, 1939
= Shingyisaurus YOUNG, 1965
N. mirabilis MUNSTER, 1834 (Type)
= Nothosaurus bergeri MEYER, 1834
= Ichthyosaurus lunevillensis ALBERTI, in BRONN, MUNSTER, 1837
= Nothosaurus muensteri MEYER, 1839
= Dracosaurus bronni GIEBEL, 1847
N. giganteus MUENSTER, 1834
= Nothosaurus andriani MEYER, 1839
= Nothosaurus angustifronis MEYER, 1844
= Nothosaurus aduncidens MEYER, 1853
= Nothosaurus baruthicus GEISSLER, 1895
= Nothosaurus chelydrops FRAAS, 1896
= Paranothosaurus amsleri PEYER, 1939
N. schimperi MEYER, 1834
N. angustidens MEYER, 1844
N. mougeoti MEYER
N. marchicus KOKEN, 1893
= Nothosaurus (Cymatosaurus) cf. friedericanus JAEKEL, 1911
= Nothosaurus crassus SCHROEDER, 1914
= Nothosaurus marchicus SCHRODER, 1914
= Nothosaurus oldenburgi SCHROEDER, 1914
= Nothosaurus procerus SCHROEDER, 1914
= Nothosaurus procerus var parva SCHRODER, 1914
= Nothosaurus raabi SCHRODER, 1914
= Nothosaurus schroderi HUENE, 1944
N. cf. marchicus KOKEN, 1893
= Conchiosaurus clavatus MEYER, 1834 (nomen nudum)
N. cf. N. marchicus KOKEN, 1893
= Nothosaurus venustus MUENSTER, 1834
N. blezingeri FRAAS, 1896
N. juvenilis EDINGER, 1921
N. lelmensis (HUENE, 1957)
= Elmosaurus lelmensis HUENE, 1957
N. unexpectus (YOUNG, 1965)
= Shingyisaurus unexpectus YOUNG, 1965
N. edingerae SCHULZ, 1970
N. transsylvanicus JURCSAK, 1976
N. tchernowi HAAS, 1980
N. cymatosauroides SANZ, 1983
N. haasi RIEPPEL, MAZIN & TCHERNOV, 1997
N. jagisteus RIEPPEL, 2001
N. winterswijkensis ALBERS & RIEPPEL, 2003
N. youngi LI & RIEPPEL, 2004
N. yangjuanensis JIANG, MAISCH, HAO, SUN & SUN, 2006
N. rostellatus SHANG, 2006
N. winkelhorsti KLEIN & ALBERS, 2009
N. zhangi LIU, HU, RIEPPEL, JIANG, BENTON, KELLEY, AITCHISON, ZHOU, WEN, HUANG, XIE, & LV, 2014
N. Species: Nova SCHOCH, 1999

Genus: Proneusticosaurus VOLZ, 1902
P. silesiacus VOLZ, 1902 (Type)
P. madelungi VOLZ, 1902

Genus: Sanchiaosaurus YOUNG, 1965
S. dengi YOUNG, 1965 (Type)

Incertae sedis
= Family: NOTHOSAURAVIDAE Kuhn, 1958

Genus: Doliovertebra HUENE, 1902
= Diplovertebra KUHN, 1934 (sic)
= Dolichovertebra SCHMIDT, 1928 (sic)
= Dolichovertebra HUENE, 1957 (sic)
D. fritschi HUENE, 1902 (Type)
= Proneusticosaurus fritischi (HUENE, 1902)

Genus: Hemilopas MEYER, 1851
= Hemilopus ROMER, 1966 (sic)
H. mentzeli MEYER, 1851 (Type)

Genus: Lamprosauroides SCHMIDT, 1927 (nomen dubium)
= Lamprosaurus MEYER, 1860 non HALLOWELL, 1852
= Lamprosciuroides ROMER, 1966 (sic)
L. goepperti (MEYER, 1860) SCHMIDT, 1927 (Type)
= Lamprosaurus goepperti MEYER, 1860 (nomen dubium)

Genus: Microleptosaurus SKUPHOS, 1893 (nomen dubium)
= Microcleptosaurus ROMER, 1966 (sic)
= Microcletosaurus TATARINOV & NOVOZHILOV (in ORLOV, 1964) (sic)
M. schlosseri SKUPHOS, 1893 (Type)

Genus: Nothosauravus KUHN, 1958 (nomen dubium)
N. geraensis KUHN, 1958 (Type)

Genus: Nothosaurus non MUNSTER, 1834
N. picardi CHOP, 1857 (nomen dubium)
N. cuvieri QUENSTEDT, 1885 (nomen dubium)
N. dichthadius (SKUPHOS, 1893) (nomen dubium)
= Kolposaurus dichthadius SKUPHOS, 1893 (nomen dubium)
N. hecki (FRITSCH, 1894)
= Oligolycus hecki FRISTCH, 1894
N. sp

Genus: Opeosaurus MEYER, 1857-55 (nomen dubium)
O. suevicus MEYER, 1857-55 (Type)

Genus: Phygosaurus ARTHABER, 1924 (nomen dubium)
P. perledicus ARTHABER, 1924 (Type)

Genus: Sulmosuchus HUENE, 1952 (nomen nudum)
= Sulmosaurus HUENE, 1952 (sic)

Gen. sp indet.

INFRAORDER: PISTOSAUROIDEA BAUR, 1887-90

Superfamily: CYMATOSAURIA Huene, 1944

Family: CYMATOSAURIDAE Huene, 1948
= Family: COROSAURIDAE Kuhn, 1961

Genus: Corosaurus CASE, 1936
C. alcovensis CASE, 1936 (Type)

Genus: Cymatosaurus FRITSCH, 1894
C. fridericianus FRITSCH, 1894 (Type)
C. latifrons (GURICH, 1884)
= Nothosaurus latifrons GURICH, 1884
= Cymatosaurus silesiacus SCHRAMMEN, 1899
= Cymatosaurus gracilis SCHRAMMEN, 1899
C. erythreus HUENE, 1944
C. multidentatus (HUENE, 1958) (nomen dubium)
= Anarosaurus? multidentatus HUENE, 1958 (nomen dubium)
C. minor RIEPPEL & WERNBERG, 1998
C. erikae MAISCH, 2014
C. sp

Genus: Tanaisosaurus SENNIKOV, 2001
T. kalandadzei SENNIKOV, 2001 (Type)

Gen. sp indet.

Superfamily: PISTOSAUROIDEA Baur in Zittel, 1887-1890 (Edinger, 1935)

Family: PISTOSAURIDAE Baur in Zittel, 1887-1890

Genus: Augustasaurus SANDER, RIEPPEL & BUCHER, 1997
A. hagodorni SANDER, RIEPPEL & BUCHER, 1997 (Type)

Genus: Bobosaurus DALLA VECCHIA, 2006
B. forojullensis DALLA VECCHIA, 2006 (Type)

Genus: Pistosaurus MEYER, 1839
P. longaevus MEYER, 1839 (Type)
= Nothosaurus baruthicus GEISSLER, 1895
= Nothosaurus strunzi GEISSLER, 1895
= Pistosaurus grandaevus MEYER, 1855
P. sp

Genus: Yunguisaurus CHENG, SATO, WU & LI, 2006
Y. liae CHENG, SATO, WU & LI, 2006 (Type)

Incertae sedis

Genus: Chinchenia YOUNG, 1965
C. sungi YOUNG, 1965 (Type)

Genus: Kwangsisaurus YOUNG, 1959
K. orientals YOUNG, 1959 (Type)
K. lusiensis YOUNG, 1978

Gen. sp indet.

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835
= ORDER: STREPTOSAURIA COPE, 1869

Incertae sedis

Genus: Dravidosaurus YADAGIRI & AYYASAMI, 1979
D. blanfordi YADGIRI & AYYASAMI, 1979 (Type)

Genus: Embaphias COPE, 1876 (nomen dubium)
E. circulosus COPE, 1876 (Type)

Genus: Haematosaurus SAUVAGE, 1874 (nomen dubium)
H. lanceolatus SAUVAGE, 1874 (Type)
= Plesiosaurus lanceolatus (SAUVAGE, 1874) KUHN, 1934 (nomen dubium)

Genus: Hunosaurus FRITSCH, 1905 (nomen dubium)
H. fasseli FRITSCH, 1905 (Type)

Genus: Iserosasurus FRITSCH, 1905 (nomen dubium)
I. littoralis FRITSCH, 1905 (Type)

Genus: Lutkesaurus KIPRIJANOFF, 1882
No specices given.

Genus: Mauisaurus non HECTOR, 1874
M. haasti HECTOR, 1874 (partim)

Genus: Myopterygius SHIKAMA, 1963 non HUENE, 1927
M. ezoensis SHIKAMA, 1963

Genus: Namuncurania RUSCONI, 1943 (nomen dubium)
N. malarquense RUSCONI, 1943 (Type)

Genus: Oligosimus LEIDY, 1872 (nomen dubium)
O. grandaevus LEIDY, 1872 (Type)

Genus: Orophosaurus COPE, 1887 (nomen dubium)
O. paucporous COPE, 1887 (Type)

Genus: Polyptychodon non OWEN, 1841
P. patagonicus AMEGHINO, 1898 (nomen vanum)

Genus: Piptomerus COPE, 1887 (nomen vanum)
P. hexagonus COPE, 1887 (Type)
P. megaloporsus COPE, 1887 (nomen vanum)
P. microporus COPE, 1887 (nomen vanum)

Genus: Plesiosaurus non CONYBEARE, 1821 (species inquirenda)
P. bibractensis SAUVAGE, 1883 (species inquirenda)
P. costatus SAUVAGE, 1883 (species inquirenda)

Genus: Stereosaurus SEELEY, 1869 (nomen nudum)
S. cratynotus SEELEY, 1869 (nomen nudum)
S. platyomus SEELEY, 1869 (nomen nudum)
S. stenomus SEELEY, 1869 (nomen nudum)

Genus: Uronautes COPE, 1870 (nomen dubium)
U. cetiformis COPE, 1870 (Type)

Genus: Nova EVANS, 2002

Gen. sp indet.

Gen. sp indet (Freshwater)

NEOPLESIOSAURIA KETCHUM & BENSON, 2010

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835
= INFRAORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLESIOSAUROMORPHA NOVA
= Superfamily: PLESIOSAUROIDEA Gray, 1825 (sensu Wells, 1943)
= Superfamily: DOLICHODEIRA Seeley, 1892
= SUBORDER: DOLICHODEIRA SEELEY, 1892

Genus: Djupedalia KNUTSEN, DRUCKENMILLER & HURUM, 2012C
D. engeri KNUTSEN, DRUCKENMILLER & HURUM, 2012C (Type)

Genus: Eoplesiosaurus BENSON, EVANS & DRUCKENMILLER, 2012
E. antiquior BENSON, EVANS & DRUCKENMILLER, 2012 (Type)

Genus: Opallionectes KEAR, 2006
O. andamookaensis KEAR, 2006 (Type)

Genus: Spitrasaurus KNUTSEN, DRUCKENMILLER & HURUM, 2012B
S. wensaai KNUTSEN, DRUCKENMILLER & HURUM, 2012B (Type)
S. larseni KNUTSEN, DRUCKENMILLER & HURUM, 2012B

Gen. sp indet.

Family: RHOMALEOSAURIDAE Nopsca, 1928
= Family: THAUMATOSAURIDAE Romer, 1956

Genus: Anningasaura VINCENT & BENSON, 2012
A. lymense VINCENT & BENSON, 2012 (Type)
= Plesiosaurus macrocephalus LYDEKKER, 1889 (referred specimen)

Genus: Atychodracon SMITH, 2015
A. megacephalus (STUTCHBURY, 1846) SMITH, 2015 (Type)
= Plesiosaurus megacephalus STUTCHBURY, 1846
= Plesiosaurus megacephalus (sic) recte megacephalus STUTCHBURY, 1846, ANON, 1851
= Thaumatosaurus megacephalus (STUTCHBURY, 1846) LYDEKKER, 1889
= Eurycleidus megacephalus (STUTCHBURY, 1846) ANDREWS, 1922
= Rhomaleosaurus megacephalus (STUTCHBURY, 1846) CRUICKSHANK, 1994

Genus: Avalonnectes BENSON, EVANS & DRUCKENMILLER, 2012
A. arturi BENSON, EVANS & DRUCKENMILLER, 2012 (Type)

Genus: Bishanopliosaurus DONG, 1980
= Bishopliosaurus CRUISCHANK, 1997 (sic)
B. youngi DONG, 1980 (Type)
B. zigongensis GAO, YE & JIANG, 2004

Genus: Borealonectes SATO & WU, 2008
B. russelli SATO & WU, 2008 (Type)

Genus: Meyerasaurus SMITH & VICENT, 2010
M. victor (FRAAS, 1910) SMITH & VICENT, 2010 (Type)
= Plesiosaurus victor FRAAS, 1910
= Thaumatosaurus victor (FRAAS, 1910) FRAAS, 1910
= Eurycleidus victor (FRAAS, 1910) ZITTEL, 1932
= Rhomaleosaurus victor (FRAAS, 1910) TARLO, 1960

Genus: Rhomaleosaurus SEELEY, 1874
= Thaumatosaurus FRAAS, 1910
R. zetlandicus (PHILLIPS, in ANON, 1854)
= Plesiosaurus zetlandicus PHILLIPS, 1854
R. cramptoni (CARTE & BAILEY, 1863) SEELEY, 1874 (Type)
= Plesiosaurus cromptoni CARTE & BAILEY, 1863)
R. propinquus (BLAKE, 1876) (nomen dubium)
= Plesiosaurus propinquus BLAKE, 1876 (nomen dubium)
R. thorntoni ANDREWS, 1922
R. sp

Genus: Stratesaurus BENSON, EVANS & DRUCKENMILLER, 2012
S. taylori BENSON, EVANS & DRUCKENMILLER, 2012 (Type)

Genus: Yuzhoupliosaurus ZHANG, 1985
Y. chengjiangensis ZHANG, 1985 (Type)

Gen. sp indet.

EUPLESIOSAURIA O’KEEFE, 2001

Family: PLESIOSAURIDAE Gray, 1825

Genus: Lusonectes SMITH, ARAUJO & MATEUS, 2012
L. sauvagei SMITH, ARAUJO & MATEUS, 2012 (Type)

Genus: Plesiosaurus CONYBEARE, 1821
= Halidragon WAGLER, 1830
= Pentatarsostinius HAWKINS, 1840
P. dolichodeirus CONYBEARE, 1824 (Type)
= Plesiosaurus homei GRAY, 1831
P. bavaricus DAMES, 1895
P. nothosauroides DAMES, 1895
P. robustus DAMES, 1895
P. keuperinus HUENE, 1929
P. changduensis ZHAO, 1986

Genus: Thalassiodracon STORRS & TAYLOR, 1996
= Hezatarostinus HAWKINS, 1840 (sic)
T. hawkinsii (OWEN, 1840) STORRS & TAYLOR, 1996 (Type)
= Plesiosaurus triotarsostinus HAWKINS, 1834
= Plesiosaurus tessarestarostrinus HAWKINS, 1834 (sic)
= Plesiosaurus hawkinsii OWEN, 1840
= Plesiosaurus hawkinsi (OWEN, 1840) LYDEKKER, 1889 (sic)
= Plesiosaurus etheridgii HAWKINS, 1834
= Plesiosaurus? pentatarsostinus HAWKINS, 1834
= Plesiosaurus hexatarsostinus HAWKINS, 1834
= Hezatarostinus HAWKINS, 1840 (sic)
= Plesiosaurus cliduchus SEELEY, 1865
= Plesiosaurus eleutheraxon SEELEY, 1865 (nomen dubium)

Genus: Westphaliasaurus SCHWERMANN & SANDER, 2011 (nomen nudum)
W. simonensii SCHWERMANN & SANDER, 2011 (Holotype)

Genus: Nova STORRS (in prep)
Plesiosaurus macrocephalus BUCKLAND, 1822
= Rhomaleosaurus macrocephalus (BUCKLAND, 1822) PERSSON, 1963
= Plesiosaurus brachycephalus SWINTON, 1948?

Genus: Nova STORRS (in prep)
= Plesiosaurus brachycephalus OWEN,

Incertae sedis

Genus: Plesiosaurus non CONYBEARE, 1821
P. trigonus CUVIER, 1824 (nomen dubium)
P. pentagonus CUVIER, 1824 (nomen dubium)
P. carinatus CUVIER, 1824 (nomen dubium)
= Colymbosaurus carinatus (CUVIER, 1824) (nomen dubium)
P. carinatus CUVIER, 1829, non PHILLIPS, 1871
= Thaumatosaurus carinatus (CUVIER, 1829, non PHILLIPS, 1871)
= Plesiosaurus giganulatus COPE, (sic)
P. jenensis ZENKER, 1833 (nomen dubium)
P. profundus ZENKER, 1833 (nomen dubium)
P. carinatus CUVIER, 1839 non PHILLIPS, 1871 non CUVIER, 1829 (nomen dubium)
= Rhomaleosaurus carinatus (CUVIER, 1839) (nomen dubium)
P. pachyomus OWEN, 1839 (nomen dubium)
P. costatus OWEN, 1840 (nomen dubium)
P. dibothricus OWEN, 1840 (nomen dubium)
P. subtrigonus OWEN, 1840 (nomen dubium)
P. macromus OWEN, 1840 (nomen dubium)
P. continiuus OWEN, 1840 (nomen dubium)
P. affinis OWEN, 1840 (nomen dubium)
P. fahrenkohlii FISCHER de WALDHEIM, 1846 (nomen dubium)
= Muraenosaurus fahrenkohlii (FISCHER de WALDHEIM, 1846) (nomen dubium)
P. truncatus OWEN, 1854 (nomen dubium)
= Cimoliosaurus truncates (OWEN, 1854) LYDEKKER, 1889 (nomen dubium)
= Muraenosaurus truncates (OWEN, 1854) SAUVAGE, 1911 (nomen dubium)
P. levis OWEN, 1854 (nomen dubium)
P. dibothrius OWEN, 1854 (nomen dubium)
P. latispinus OWEN, 1854 (nomen dubium)
P. depressicostatus OWEN, 1854 (nomen dubium)
P. leptopleuron OWEN, 1854 (nomen dubium)
P. subconcavus OWEN, 1854 (nomen dubium)
P. compressus OWEN, 1854 (nomen dubium)
P. subplanus OWEN, 1854 (nomen dubium)
P. pectopleuron OWEN, 1854 (nomen dubium)
P. brevis OWEN, 1854 (nomen dubium)
P. megapleuron OWEN, 1854 (nomen dubium)
= Colymbosaurus megapleuron (OWEN, 1854) DELAIR, 1959 (nomen dubium)
P. subdepressus OWEN, 1854 (nomen dubium)
P. platydeirus OWEN, 1854 (nomen dubium)
P. gurgitis PICTE & RENEVIER, 1854 (nomen dubium)
P. suevicus QUENSTEDT, 1858 (nomen dubium)
P. posiondoniae QUENSTEDT, 1858 (nomen dubium)
P. laticeps OWEN, 1860 (nomen dubium)
P. neocomiensis PICTE & CAMPICHE, 1860 (nomen dubium)
P. plainspondylus DAMON, 1860 (nomen dubium)
P. platydeirus OWEN, 1860 (nomen dubium)
P. neogaeus (BURMEISTER, 1861) (nomen dubium)
= Teleosaurus neogaeus BURMEISTER, 1861(nomen dubium)
P. plesiosaurus trigonalis OWEN, 1864 (nomen dubium)
P. cycnodeirus SEELEY, 1869 (nomen dubium)
P. euryspondylus SEELEY, 1869 (nomen dubium)
P. microdeirus SEELEY, 1869 (nomen dubium)
P. ophiodeirus SEELEY, 1869 (nomen dubium)
P. poecilospondylus SEELEY, 1869 (nomen dubium)
P. platyderius SEELEY, 1869 non OWEN, 1854
P. erraticus PHILLIPS, 1871 (nomen dubium)
P. hexagonalis PHILLIPS, 1871 (nomen dubium)
P. infraplanus PHILLIPS, 1871 (nomen dubium)
P. validus PHILLIPS, 1871 (nomen dubium)
P. winspitensis SEELEY, 1871 (nomen dubium)
P. ellipsospondylus PHILLIPS, 1871 (nomen dubium)
P. occiduus LEIDY, 1873 (nomen dubium)
P. morinicinus SAUVAGE, 1879 (nomen dubium)
= Rhomaleosaurus morinicinus (SAUVAGE, 1879) (nomen dubium)
P. phillipsi SAUVAGE, 1879 (nomen dubium)
= Plesiosaurus carinatus PHILLIPS, 1871 non CUVIER, 1829
P. simthi OWEN, 1882 (nomen dubium)
P. bithractensis SAUVAGE, 1883 (nomen dubium)
P. degenhardti KOKEN, 1887 (nomen dubium)
P. limnophilus KOKEN, 1887 (nomen dubium)
= Cimoliosaurus limnophilus (KOKEN, 1887) (nomen dubium)
P. shirleyensis KNIGHT, 1900 (nomen dubium)
P. kanzleri KOKEN, 1905 (nomen vanum)
= Peloneustes kanzleri (KOKEN, 1905) TARLO, 1960 (nomen vanum)
= Elasmosaurus kanzleri (KOKEN, 1905) KUHN, 1964 (nomen vanum)
P. houzeaui DOLLO, 1909 (nomen dubium)
P. baururthicus KUHN, 1934 (nomen dubium)
= Plesiosaurus priscus HUENE, 1902 (nomen dubium)
P. hesternus WELLES, 1943 (nomen dubium)
P. sp

Gen. sp indet.

Superfamily: CRYPTOCLEIDOIDEA Williston, 1925
= CRYPTOCLIDA KETCHUM & BENSON, 2010

Family: CRYPTOCLEIDAE Williston, 1925
= Subfamily: CRYPTOCLEIDINAE Williston, 1925

Genus: Colymbosaurus SEELEY, 1874
C. trochanterius (OWEN, 1840) SEELEY, 1874 (Type)
= Plesiosaurus trochanterius OWEN, 1840
= Plesiosaurus (Pliosaurus) trochanterius (OWEN, 1840) OWEN, 1841
= Pliosaurus trochanterius (OWEN, 1840) PHILLIPS, 1871
= Cimoliosaurus trochanterius (OWEN, 1840) LYDEKKER, 1889
= Cryptocleidus trochanterius (OWEN, 1840) SAUVAGE, 1911
= Plesiosaurus megadeirus SEELEY, 1869
= Colymbosaurus megadeirus (SEELEY, 1869) SEELEY, 1874
= Pliosaurus portlandicus OWEN, 1869
= Cimoliosaurus portlandicus (OWEN, 1869) LYDEKKER, 1889
= Colymbosaurus portlandicus (OWEN, 1869) SEELEY, 1892
= Plesiosaurus macrodeirus SEELEY, 1869
= Plesiosaurus manselii HULKE, 1870
= Plesiosaurus manseli LYDEKKER, 1888 (sic)
= Muraenosaurus manselli SEELEY, 1874 (sic)
= Muraenosaurus manselii (HULKE, 1870) SAUVAGE, 1879
= Colymbosaurus manselii (HULKE, 1870) SEELEY, 1892
C. svalbardensis (PERSSON, 1962) KNUTSEN, DRUCKENMILLER & HURUM, 2012A
= Tricleidus svalbardensis PERSSON, 1962 (nomen dubium)

Genus: Cryptocleidus SEELEY, 1892
= Apractocleidus SMELLIE, 1916
= Crytoclidus GASPARINI & SPALLETTI, 1993 (sic)
C. eurymerus (PHILLIPS, 1871) SEELEY, 1892 (Type)
= Plesiosaurus eurymerus PHILLIPS, 1871
= Cimoliosaurus eurymerus (PHILLIPS, 1871) LYDEKKER, 1889
= Plesiosaurus oxfordiensis SEELEY, 1869 (nomen nudum)
= Plesiosaurus oxoniensis PHILLIPS, 1871
= Muraenosaurus oxoniensis (PHILLIPS, 1871) SEELEY, 1874
= Cimoliosaurus oxoniensis (PHILLIPS, 1871) LYDEKKER, 1889
= Plesiosaurus durobrivensis SEELEY, 1892
= Muraenosaurus (Cryptoclidus) platymerus SEELEY, 1892
= Cryptocleidus platymerus (SEELEY, 1892) ANDREWS, 1895
= Apractocleidus teretipes SMELLIE, 1916
C. richardsoni (LYDEKKER, 1889) BOGOLUBOV, 1909
= Cimoliosaurus richardsoni LYDEKKER, 1889

Genus: Pantosaurus MARSH, 1891
= Parasaurus MARSH, 1885 non MEYER, 1857
P. stiatus (MARSH, 1885) MARSH, 1891 (Type)
= Parasaurus stiatus MARSH, 1885
= Muraenosaurus reedii MEHL, 1912 (nomen dubium)

Genus: Vinialesaurus GASPARINI, BARDET & ITURRALDE-VINENT, 2002
V. caroli (De La TORRE & ROJAS, 1949) GASPARINI, BARDET & ITURRALDE-VINENT, 2002 (Type)
= Cryptocleidus cuervoi caroli De La TORRE & ROJAS, 1949 (nomen dubium)
= Cryptocleidus cuervoi caroli De La TORRE & ROJAS, 1949 (sic)
= Cryptocleidus caroli De La TORRE & ROJAS, 1949 (nomen dubium)
= Cryptocleidus? vignalensis De La TORRE & CUERVO, 1949 (on a label)
= Cryptocleidus cuervoi ROJAS, 1949 (nomen dubium)
= Cryptocleidus cuervoi avesadai ROJAS, 1949 (nomen dubium)

Genus: Nova LONG, 1998

Family: MURAENOSAURIDAE White, 1940
= Subfamily: MURAENOSAURINAE White, 1940

Genus: Muraenosaurus SEELEY, 1874
= Picrocleidus ANDREWS, 1909
= Tremamescleis WHITE, 1940
M. leedsii SEELEY, 1874 (Type)
= Plesiosaurus leedsi (SEELEY, 1874) WHIDBORNE, 1881
= Plesiosaurus plicatus PHILLIPS, 1871
= Cimoliasaurus plicatus (PHILLIPS, 1871) LYDEKKER, 1889
= Muraenosaurus plicatus (PHILLIPS, 1871) SAUVAGE, 1879?
= Cimoliasaurus durobrivensis LYDEKKER, 1889
= Muraenosaurus durobrivensis (LYDEKKER, 1889) ANDREWS, 1909
= Tremamescleis durobrivensis (LYDEKKER, 1889) WHITE, 1940
= Muraenosaurus platyclis SEELEY, 1892
= Tremamescleis platyclis (SEELEY, 1892) WHITE, 1940
M. belcolis SEELEY, 1892
= Pirocleidus beloclis (SEELEY, 1892) ANDREWS, 1909

Family: TRICLEDIDAE emend O'KEEFE, 2001
= TRICLEDIA O’KEEFE , 2001

Genus: Tricleidus ANDREWS, 1909
T. seeleyi ANDREWS, 1909 (Type)

XENOPSARIA BENSON & DRUCKEMILLER, 2013

Superfamily: LEPTOCLEIDOIDEA White, 1940 emend Druckenmiller & Russell, 2008
= LEPTOCLEIDIA KETCHUM & BENSON, 2010

Family: LEPTOCLEIDIDAE White, 1940
= Family: BRANCASAURIDAE White, 1940

Genus: Brancasaurus WEGNER, 1914
B. brancai WEGNER, 1914 (Type)

Genus: Leptocleidus ANDREWS, 1922
= Peyereus STROMER, 1935
L. superstes ANDREWS, 1922 (Type)
L. capensis (ANDREWS, 1911) CRUICKSHANK, 1997
= Plesiosaurus capensis ANDREWS, 1911
= Peyereus capensis (ANDREWS, 1911) STROMER, 1935
L. clemai CRUICKSHANK & LONG, 1997
L. sp

Genus: Nichollsssaura DRUCKENMILLER & RUSSELL, 2009
= Nichollsia DRUCKENMILLER & RUSSELL, 2008 non CHOPRA & TIWARI, 1950
= Genus Nova DRUCKENMILLER & RUSSELL, 2004
N. borealis (DRUCKENMILLER & RUSSELL, 2008) DRUCKENMILLER & RUSSELL, 2009 (Type)
= Nichollsia borealis DRUCKENMILLER & RUSSELL, 2008

Genus: Umoonasaurus KEAR, SCHROEDER & LEE, 2006
U. demoscyllus KEAR, SCHROEDER & LEE, 2006 (Type)

Genus: Vectocleidus BENSON, KETCHUM, NAISH, & TURNER, 2012
V. pastorum BENSON, KETCHUM, NAISH, & TURNER, 2012 (Type)

Gen. sp indet.

Family: POLYCOTYLIDAE Cope, 1869
= Family: TRINACROMERIIDAE Nopcsa, 1923
= Subfamily: TRINACOMERIINAE Nopcsa, 1923

Genus: Edgarosaurus DRUCKENMILLER, 2002
E. muddi DRUCKENMILLER, 2002 (Type)

Genus: Pahaspasaurus SCHUMACHER, 2007
= Genus Nova VONLOH & BELL, 1998, SCHUMACHER & BELL, 1999
P. haasi SCHUMACHER, 2007 (Type)

Genus: Sulcusuchus GASPARINI & SPALLETTI, 1990
S. erraini GASPARINI & SPALLETTI, 1990 (Type)
Note : Was thought to be a Dyrosaurid mesosuchian, but GASPARINI & FUENTE 1999 placed it into the Polycotylid.

Genus: Thililua BARDET, PEREDA SUBERBIOLA & JALIL, 2003b
T. longicollis BARDET, PEREDA SUBERBIOLA & JALIL, 2003b (Type)

Subfamily: PALMULASAURINE Albright, Gillette & Titus, 2007c
= Subfamily: PALMULA Albright, Gillette & Titus, 2007a

Genus: Palmulasaurus ALBRIGHT, GILLETTE & TITUS, 2007c
= Palmula LEA 1833 non ALBRIGHT, GILLETTE & TITUS, 2007a
P. quadratus (ALBRIGHT, GILLETTE & TITUS, 2007a) ALBRIGHT, GILLETTE & TITUS, 2007c
= Palmula quadratus ALBRIGHT, GILLETTE & TITUS, 2007a (Type)

Gen. sp indet.

Subfamily: POLYCOTYLINAE Cope, 1869

Genus: Dolichorhynchops WILLISON, 1902
D. osborni WILLISTON, 1902 (Type)
= Polycotylus osborni (WILLISTON, 1902) WATSON, 1951?
= Trinacromerium osborni (WILLISTON, 1902) KUHN, 1934
D. bonneri (ADAMS, 1974) O’KEEFE, 2008
= Trinacromerium bonneri ADAMS, 1974 (nomen vanum)
D. herschelensis 2005
D. tropicensis McKEAN, 2012
D. sp
= Plesiosaurus ichthyospondylus SEELEY, 1869 (nomen dubium)
= Cimoliosaurus leucoscopelus ETHERIDGE, 1897
= Trinacromerium leucoscopelus (ETHERIDGE, 1897) (nomen dubium)
= Dolichorhynchops leucoscopleus (ETHERIDGE, 1897)(nomen dubium)
D. sp

Genus: Eopolycotylus ALBRIGHT, GILLETTE & TITUS, 2007a
E. rankini ALBRIGHT, GILLETTE & TITUS, 2007a (Type)

Genus: Manemergus BUCHY, METAYER & FREY, 2005
M. anguirostris BUCHY, METAYER & FREY, 2005 (Type)

Genus: Polycotylus COPE, 1869
P. latipinnis COPE, 1869 (Type)
P. tenius HECTOR, 1874
P. dolichops WILLLISTON, 1906
P. suprajurensis SAUVAGE, 1876

Genus: Trinacromerium CRAGIN, 1888
= Ceraunosaurus THURMOND 1968
= Piratosaurus LEIDY, 1865
T. bentonianum CRAGIN, 1888 (Type)
= Trinacromerium anonymum WILLISTON, 1903
= Trinacromerium willistoni RIGGS, 1944
= Dolichorhynchops willistoni (RIGGS, 1944)
= Ceraunosaurus brownorum THURMOND, 1968
T. latimanus WILLISTON, 1906
T. kirki RUSSELL, 1935
= Dolichorhynchops kirki (RUSSELL, 1935)
T. sp
T. sp (Freshwater)

Genus: Nova IRWIN & SCHUMACHER, 2003

Genus: Nova SATO, 2002

Gen. sp indet.

Incertae sedis

Genus: Neopliosaurus SINTZOV, 1898 (nomen dubium)
N. sp (no species given) SINTZOV, 1898 (Type)

Genus: Polycotylus non COPE, 1869
P. brevispondylus BOGOLOBOV, 1911(nomen dubium)
P. epiguritis BOGOLOBOV, 1911(nomen dubium)
P. ichthyospondylus tanais BOGOLOBOV, 1911(nomen dubium)
= Plesiosaurus ichthyospondylus tanais (BOGOLOBOV, 1911) (nomen dubium)
= Trinacromerum ichthyospondylus tanais (BOGOLOBOV, 1911) (nomen dubium)
P. orientalis BOGOLOBOV, 1911(nomen dubium)
= Trinacromerium orientalis (BOGOLOBOV, 1911) (nomen dubium)
= Plesiosaurus ichthyspondylus SCHRODER, 1885 non SEELEY, 1869(nomen dubium)
P. ultimus BOGOLOBOV, 1911(nomen dubium)
P. donicus PRAVOSLAVLEU, 1915 (nomen dubium)
P. sp

Genus: Trinacromerium non CRAGIN, 1888
T. philcatus (LEIDY, 1865) (nomen dubium)
= Piratosaurus philcatus LEIDY, 1865 (nomen dubium)

Superfamily: ELASMOSAUROIDEA Cope, 1869

Family: ELASMOSAURIDAE Cope, 1869
= Family: CIMOLIASAURIDAE Delair, 1959

= Family: TREMAESACLIDINIDAE White, 1940
= Subfamily: TREMAESACLEIDINAE White, 1940

Genus: Albertonectes KUBO, MITCHELL & HENDERSON, 2012
A. vanderveldei KUBO, MITCHELL & HENDERSON, 2012 (Type)

Genus: Alexeyisaurus SENNIKOV & ARKHANGELSKY, 2010
A. karnoushenkoi SENNIKOV & ARKANGELSKY, 2010 (Type)

Genus: Aphrosaurus WELLES, 1943
A. furlongi WELLES, 1943 (Type)

Genus: Callawayasaurus CARPENTER, 1999
C. columbiensis (WELLES, 1962) CARPENTER, 1999 (Type)
= Alzadasaurus columbiensis WELLES, 1962

Genus: Eromangasaurus KEAR, 2005 (published in 2006)
E. carinognathus KEAR, 2005 (published in 2006) (Type)
= Woolungasaurus cf. W. glendowerensis PERSSON, 1982
= Tuarangisaurus australis SACHS, 2005

Genus: Goniosaurus MEYER, 1860
G. binskhorsti MEYER, 1860 (Type)

Genus: Hydrorion GROßMANN, 2007
H. brachypterygius (HUENE, 1923) GROßMANN, 2007 (Type)
= Plesiosaurus brachypterygius HUENE, 1923
= Microcleidus brachypterygius (HUENE, 1923), BAKKER, 1993

Genus: Mauisaurus HECTOR, 1874
M. haasti HECTOR, 1874 (Type)
= Cimoliasaurus haasti (HECTOR, 1874)
= Elasmosaurus haasti (HECTOR, 1874)
= Plesiosaurus australis OWEN, 1861 (partim)
= Ichthyosaurus HECTOR, 1870
= Mauisaurus brachiolatus HECTOR, 1870
= Plesiosaurus (Mauisaurus) brachiolatus (HECTOR, 1870)
= Mauisaurus latibrachialis HECTOR, 1874
= Mauisaurus latibirolatus HECTOR, 1871 (sic)
M. gardneri SEELEY, 1877
= Plesiosaurus constrictus OWEN, 1850
= Plesiosaurus gardneri (SEELEY, 1877)
M. sp

Genus: Microcleidus WATSON, 1911
M. homalospondylus (OWEN, 1865) WATSON, 1911 (Type)
= Plesiosaurus homalospondylus OWEN, 1865
= Plesiosaurus coelospondylus CONYBEARE, 1842
= Plesiosaurus latispinus BENNEDEN, 1882 non OWEN, 1854
M. macropterus (SEELEY, 1865) KUHN, 1934
= Plesiosaurus macropterus SEELEY, 1865
M. sp

Genus: Occitanosaurus BARDET, GODEFROIT & SCIAU, 1999
O. tournemirensis (SCIAU, CROCHET & MATTEI, 1990) BARDET, GODEFROIT & SCIAU, 1999
(Type)
= Plesiosaurus tournemirensis SCIAU, CROCHET & MATTEI, 1990

Genus: Seeleyosaurus WHITE, 1940
= Plesiopterys O'KEEFE, 2004
S. guilelmiimperatoris (DAMES, 1895) WHITE, 1940 (Type)
= Plesiosaurus guilelmi imperatoris DAMES, 1895
= Plesiosaurus imperatoris guilelmi MENNER, 1992
= Microcleidus guilelmi imperatoris (DAMES 1895) MENNER, 1992
= Seeleyosaurus holzmadensis WHITE, 1940
= Plesiosaurus guilelmi imperatoGenus: Terminonatatar SATO, 2003
T. ponteixensis SATO, 2003 (Type)

Genus: Tuarangisaurus WIFFEN & MOISLEY, 1986
= Tourangisaurus ARAUJO, POLCYN, MATEUS & SCHULP, 2010 (sic)
T. keysei WIFFEN & MOISLEY, 1986 (Type)
T? cabazai emend GASPARINI, SALGADO & CASADIO, 2003
T. sp

Genus: Wapuskanectes DRUCKENMILLER & RUSSELL, 2006
W. betsynichollsae DRUCKENMILLER & RUSSELL, 2006 (Type)

Genus: Zarafasaura VINCENT, BARDET, PEREDA SUBERBIOLA, BOUYA, AMAGHZAZ & MESLOUH, 2011
Z. oceanis VINCENT, BARDET, PEREDA SUBERBIOLA, BOUYA, AMAGHZAZ & MESLOUH, 2011 (Type)

Genus: Nova ARAUJO, POLCYN, MATEUS & SCHULP, 2010, ARUJO, LOUIS, POLCYN, MATEUS & SCHULP, 2011

Genus: Nova GASPARINI & FUENETE, 1999

Genus: Nova GASPARINI & SALGADO, 1999

Genus: Nova GASPARINI, SALGADO & CASADIO, 2002

Genus: Nova HILLER, 2004

Genus: Nova HILLER, 2004

Genus: Nova OGAWA & NAKAYA, 1995

Genus: Nova SATO, BRYANT, HASEGAWA & MANABE, 2006

Genus: Nova? VOORHIES, 1994

ris FRAAS, 1910 non DAMES, 1895
= Plesiopterys wildi O'KEEFE, 2004 (Type)

Subfamily: ELASMOSAURINAE Cope, 1869

Genus: Cardiocorax ARAUJO, POLCYN, SCHULP, MATEUS, JACOBS, GONCALVES & MORAIS, 2014
C. mukulu ARAUJO, POLCYN, SCHULP, MATEUS, JACOBS, GONCALVES & MORAIS, 2014 (Type)

Genus: Elasmosaurus COPE, 1868
E. platyurus COPE, 1868 (Type)
= Discosaurus carinatus COPE, 1868
= Cimoliasaurus sp ZITTEL, 1890

Genus: Fresnosaurus WELLES, 1943
F. drescheri WELLES, 1943 (Type)

Genus: Hydralmosaurus WELLES, 1943
= Styxosaurus WELLES, 1952 referred material
H. serpentinus (COPE, 1871) WELLES, 1943 (Type)
= Elasmosaurus serpentinus COPE, 1871
= Styxosaurus browni WELLES, 1952

Genus: Hydrotherosaurus WELLES, 1943
H. alexandrae WELLES, 1943 (Type)

Genus: Libonectes CARPENTER, 1997
L. morgani (WELLES 1949) (Type)
= Elasmosaurus morgani WELLES, 1949
L. atlasense BUCHY, 2005

Genus: Morenosaurus WELLES, 1943
M. stocki WELLES, 1943 (Type)
M. sp

Genus: Styxosaurus WELLES, 1943
= Thalassiosaurus WELLES, 1943
= Thalassonomosaurus WELLES, 1943
= Woolungosaurus PERSSON, 1960
S. snowii (WILLISTON, 1890) WELLES, 1943 (Type)
= Cimoliasaurus snowii WILLISTON, 1890
= Elasmosaurus snowii (WILLISTON, 1890) WILLISTON, 1906
= Polycotylus ischiadicus WILLISTON, 1903 (nomen dubium)
= Elasmosaurus ischiadicus (WILLISTON, 1903) WILLISTON, 1906 (nomen dubium)
= Ogmodirus ischiadicus (WILLISTON, 1903) WILLISTON & MOODE, 1917 (nomen dubium)
= Thalassiosaurus ischidicus (WILLISTON, 1903) WELLES, 1943 (nomen dubium)
= Elasmosaurus marshii WILLISTON, 1906 (nomen dubium)
= Thalassonomosaurus marshii (WILLISTON, 1906) WELLES, 1943 (nomen dubium)
= Alzadasaurus pembertoni WELLES & BUMP, 1949
= Alzadasaurus kansasensis WELLES, 1952
= Elasmosaurus ischiadicus WILLISTON, 1906 (Referred specimen)
= Ogmodirus ischiadicus WILLISTON & MOODIE, 1917 (Referred specimen)
S. glendowerensis (PERSSON, 1960) SACHS, 2004
= Woolungosaurus glendowerensis PERSSON, 1960 (Type)
S. sp

Genus: Thalassomeodon WELLES, 1943
T. haningtoni WELLES, 1943 (Type)
= Alzadasaurus riggsi WELLES, 1943
= Elasmosaurus serpentinus Fide RIGGS, 1939

Incertae sedis

Genus: Alzadasaurus COLBERT, 1949 non WELLES, 1943
A. tropicus COLBERT, 1949 (nomen dubium)

Genus: Cimoliasaurus non LEIDY, 1851
C. caudalis HULTON, 1899 (nomen dubium)

Genus: Cimoliasaurus LEIDY, 1851 (nomen dubium)
= Discosaurus LEIDY, 1851 (nomen vanum)
= Scanisaurus PERSSON, 1969
= Symoliosaurus LYDEKKER, 1889
C. magnus LEIDY, 1851 (Type)
= Discosaurus magnus (LEIDY, 1851) LEIDY, 1870 (nomen vanum)
C. australis OWEN, 1862 (nomen dubium)
= Cimoliasaurus crassicostatus OWEN, 1870 (nomen dubium)
= Cimoliasaurus cantabrigiensis LYDEKKER, 1889 (nomen dubium)
= Cimoliasaurus neocamniensis OWEN, 1861 (nomen dubium)
= Cimoliasaurus mizbergi KUHN, 1934 (sic, nomen dubium)
C. vetustus (LEIDY, 1851) COPE, 1869
= Discosaurus vetustus LEIDY, 1851(nomen vanum)
C. plainor (LEIDY, 1870) COPE, 1875 (nomen dubium)
= Discosaurus plainor LEIDY, 1870 (nomen dubium)
C. planus OWEN, 1869 (nomen dubium)
= Plesiosaurus winsporensis SEELEY, 1871 (nomen dubium)
C. tenius HECTOR, 1874 (nomen dubium)
C. smithi (OWEN, 1884)
C. andium DEECKE, 1894 (nomen dubium)
C. maccoyi ETHERIDGE, 1904 (nomen dubium)
C. teplicensis FRITSCH, 1905 (nomen dubium)
C. lissaensis FRITSCH, 1905 (nomen dubium)
C. vicinus FRITSCH, 1905 (nomen dubium)
C. nazarowi (BOGOLOBOV, 1911) (nomen dubium)
= Scanisaurus narzarowi PERSSON, 1969 (nomen dubium)
C. hirzsbergi KUHN, 1934 (nomen dubium)
= Cimoliasaurus portlandicus HIZBERG, 1924 (nomen dubium)
C. sp

Genus: Elasmosaurus non COPE, 1868
E. orientalis COPE, 1868 (nomen dubium)
= Discosaurus orientalis (COPE, 1868) LEIDY, 1870 (nomen dubium)
E. helmersenii (KIPRIJANOFF, 1882) PERSSON, 1960 (nomen dubium)
= Plesiosaurus helmersenii KIPRIJANOFF, 1882 (nomen dubium)
E. gigas SCHROEDER, 1885 (nomen dubium)
E. sternbergi WILLISTON, 1906 (nomen dubium)
E. nobilis WILLISTON, 1906 (nomen dubium)
= Thalassonomosaurus nobilis (WILLISTON, 1906) (nomen dubium)
E. kurskensis BOGOLOBOV, 1911 (nomen dubium)
= Plesiosaurus helmersenii KIPRIJANOFF, 1883 (referred material)
E. orskensis BOGOLOBOV, 1911 (nomen dubium)
E. serdobensis BOGOLOBOV, 1911 (nomen dubium)
E? sachalinensis RYABININ, 1915 (nomen dubium)
E. amalitskii PRAVOSLAVLEV, 1916 (nomen dubium)
E. antiquus DUBEIKOVSKII & OCHEV, 1967 (nomen dubium)
E. sp

Genus: Eretmosaurus non SEELEY, 1874
E. rzasnickii MENNER, 1948 (nomen dubium)
E? jakowlewi MENNER, 1948 (nomen dubium)

Genus: Leurospondylus BROWN, 1913
L. ultimus BROWN, 1913 (Type)

Genus: Muraenosaurus non SEELEY, 1874
M. brevior (LYDEKKER, 1889) SAUVAGE, 1911 (nomen dubium)
= Cimoliasaurus brevior LYDEKKER, 1889 (nomen dubium)
M. truncatus LYDEKKER, 1889 (nomen dubium)
= Cimoliasaurus truncatus (LYDEKKER 1889) (nomen dubium)
= Plesiosaurus infraplanus SAUVAGE, 1879?
= Plesiosaurus plicatus SAUVAGE, 1879?
= Cimoliasaurus truncatus KUHN, 1934
= Plesiosaurus diaedicomus OWEN
= Plesiosaurus dudbepressus OWEN
M. purbecki BOGOLOBOV, 1911 (nomen dubium)
M. elasmosauroides BOGOLOBOV, 1911 (nomen dubium)
M. mazetieri BIGOT, 1938 (nomen dubium)
M. kamensis DUBEIKOVSKII & OCHEV, 1967 (nomen dubium)
M. sp

Genus: Ogmodirus WILLISTON & MOODIE, 1917 (nomen dubium)
O. martinii WILLISTON & MOODIE, 1917 (Type)

Genus: Peloneustes non LYDEKKER, 1889
P. kanzleri

Genus: Plesiosaurus non CONYBEARE, 1821
P. chilensis (GERVAIS in GRAY, 1848) (nomen dubium)
= Pliosaurus chilensis (GERVAIS in GRAY, 1848) (nomen dubium)
= Cimoliasaurus andium DECKE, 1896 (nomen dubium)
P. constrictus OWEN, 1850 (nomen dubium)
P. planus (OWEN, 1864) non HULKE, 1883 (nomen dubium)
= Pliosaurus planus (OWEN, 1864) TARLO, 1960 (nomen dubium)
P. macrospondylus McCOY, 1867 (nomen dubium)
P. brevifemur COPE, 1875 (nomen dubium)
P. mudgei CRAGIN, 1894 (nomen dubium)
P. australis OWEN, 1861 (nomen dubium) (partim)
= Cimoliasaurus australis (OWEN, 1861) (nomen dubium)
P. crassicostatus OWEN, 1870 (nomen dubium)
P. hoodi OWEN, 1870 (nomen dubium)
= Cimoliasaurus hoodi (OWEN, 1870) (nomen dubium)
= Elasmosaurus hoodi (OWEN, 1870) (nomen dubium)
P. dewalquii VAN BENEDEN, 1882 (nomen dubium)
P. holmesi HECTOR, 1874 (nomen dubium)
= Cimoliasaurus holmesi (HECTOR, 1874) (nomen dubium)
= Elasmosaurus holmesi (HECTOR, 1874) (nomen dubium)
P. mackayi HECTOR, 1874 (nomen dubium)
= Cimoliasaurus mackayi (HECTOR, 1874) (nomen dubium)
P. traversii HECTOR 1874 (nomen dubium)
P. haasti HECTOR, 1874 (nomen dubium) (partim)
= Mauisaurus haasti (HECTOR, 1874) (nomen dubium) (partim)
P. gouldii WILLISTON, 1897 (nomen dubium)
P. mauritanicus AMBOURG, (& SIGNEUX) 1952 (nomen dubium)
P. sp

Genus: Pliosaurus non OWEN, 1841
P. gigas SCHRODER, 1885 (nomen vanum)

Genus: Trinacromerium non CRAGIN, 1888
T. lafquenianum GASPARINI & GONI, 1985

Gen. sp indet. (Cimolisauridae)

Gen. sp indet.

Gen. sp indet (Freshwater)

Subfamily: ARISTONECTINAE O'Keefe & Street, 2009
= Family: ARISTONECTIDAE O'Keefe & Street, 2009

Genus: Abyssosaurus BEREZIN, 2011
A. nataliae BEREZIN, 2011 (Type)

Genus: Aristonectes CABREA, 1941
= Morturneria CHATTERJEE & CREISLER, 1994
= Turneria CHATTERJEE & SMALL 1989 non FOREL 1895
A. parvidens
CABREA, 1941 (Type)
= Turneria seymourensis
CHATTERJEE & SMALL 1989
= Morturneria seymourensis
(CHATTERJEE & SMALL 1989) CHATTERJEE & CREISLER, 1994
A. sp

Genus: Futabasaurus SATO, HASEGAWA & MANABE, 2006
F. suzukii SATO, HASEGAWA & MANABE, 2006 (Type)

Genus: Kaiwhekea CRUICKSHANK & FORDYCE, 2002
K. katiki CRUICKSHANK & FORDYCE, 2002 (Type)

Genus: Kimmerosaurus BROWN, 1981
K. langhami BROWN, 1981 (Type)
K. sp

Genus: Tatenectes O’KEEFE & WAHL, 2003b
T. laramiensis (KNIGHT, 1900) O’KEEFE & WAHL, 2003b (Type)
= Cimoliasaurus laramiensis KNIGHT, 1900
= Tricleidus laramiensis (KNIGHT, 1900) MEHL, 1912

Gen. sp indet.

Incertae sedis

Genus: Colymbosaurus non SEELEY, 1872
C. brachistospondylus (HULKE, 1870) LYDEKKER, 1889 (misspelling of Cimoliasaurus nomen dubium)
= Plesiosaurus brachistospondylus HULKE, 1870 (nomen dubium)
C. dutertrei SAUVAGE 1879 (nomen dubium)
C. sklerodirus BOGOLUBOV, 1912 (nomen dubium)
C. sp

Genus: Cryptocleidus non SEELEY, 1892
C. simbirskensis BOGOLIUBOV, 1909 (nomen dubium)
C. beaugrandi SAUVAGE, 1912 (nomen dubium)
C. kimmeridgensis HIRSZBERG, 1924 (nomen dubium)
C. aldingeri HUENE, 1935 (nomen dubium)
= Cryptocleidus (subgenus Apractocleidus) aldingeri (HUENE, 1935) (nomen dubium)
C. sp

Genus: Mauisaurus non HECTOR, 1874
M. haasti WELLS & GREGG, 1971, HILLER et al., 2005 (Note: as per O’gorman, Otero & Hiller, 2014)

Gen. sp indet.

INFRAORDER: PLIOSAUROMORPHA NOVA

Superfamily: PLIOSAUROIDEA Seeley, 1874
= Superfamily: BRACHYDEIRA Seeley, 1892
= SUBORDER: BRACHYDEIRA SEELEY, 1892

Incertae sedis

Genus: Attenborosaurus BAKKER, 1993
A. conybearei (SOLLAS, 1881) BAKKER, 1993 (Type)
= Plesiosaurus conybeari SOLLAS, 1881
= Plesiosaurus laticeps OWEN, 1882

Genus: Hauffiosaurus O’KEEFE, 2001
H. longirostris (BLAKE, in TATE & BLAKE, 1876) BENSON, KETCHUM, NOE & GOMEZ-PEREZ, 2011
= Macroplata longirostris (BLAKE, in TATE & BLAKE, 1876) WHITE, 1940
= Plesiosaurus longirostris BLAKE, in TATE & BLAKE, 1876
= Genus: Nova NOE, 2007 (as per SATO & WU, 2008)
H. zanoni O’KEEFE, 2001 (Type)
H. tomistomimus BENSON, KETCHUM, NOE & GOMEZ-PEREZ, 2011
= Rhomaleosaurus longirostris BLAKE in TATE & BLAKE; HALSTEAD in BROADHURST & DUFFY, 1970
= Macroplata longirostris (BLAKE in TATE & BLAKE) CRUICKSHANK, 1996

Genus: Marmornectes KETCHUM & BENSON, 2011
M. candrewi KETCHUM & BENSON, 2011 (Type)

Gen. sp indet (Fresh water)

Gen. sp indet (Salt water)

Family: PLIOSAURIDAE Seeley, 1874

Genus: Archaeonectrus NOVOZHILOV, 1964
A. rostratus (OWEN, 1865) NOVOZHILOV, 1964 (Type)
= Plesiosaurus rostratus OWEN, 1865

Genus: Bathyspondylus DELAIR, 1982
B. swindoniensis DELAIR, 1982 (Type)

Genus: Cryonectes VINCENT, BARDET & MATTIOLI, 2013
C. neustriacus VINCENT, BARDET & MATTIOLI, 2013 (Type)

Genus: Eretmosaurus SEELEY, 1874
= Erethmosaurus HUENE, 1956 (sic)
E. rugosus (OWEN, 1840) SEELEY, 1874 (Type)
= Plesiosaurus rugosus OWEN, 1840
E. dubius BLAKE, in TATE & BLAKE, 1876
E. sp

Genus: Eurycleidus ANDREWS, 1922
E. arcuatus (OWEN, 1840) ANDREWS, 1922 (Type)
= Plesiosaurus arcuatus OWEN, 1840
= Thaumatosaurus arcutatus (OWEN, 1840) LYDEKKER, 1889

Genus: Eurysaurus GAUDRY, 1878 non NOPSCA, 1928
E. raincourti GAUDRY, 1878 (Type)

Genus: Georgiasaurus OTSCHEV, 1978
= Georgia OTSCHEV, 1976 non
G. penzensis (OTSCHEV, 1976) OTSCHEV, 1978 (Type)
= Georgia penzensis OTSCHEV, 1976

Genus: Hastanectes BENSON, KETCHUM, NAISH & TURNER, 2012
H. valdensis (LYDEKKER, 1889) BENSON, KETCHUM, NAISH & TURNER, 2012 (Type)
= Cimoliosaurus valdensis LYDEKKER, 1889 (sic nomen dubium)
= Plesiosaurus valdensis (LYDEKKER, 1889) (nomen dubium)
= Cimoliasaurus valdensis (LYDEKKER, 1889) (nomen dubium)

Genus: Macroplata SWINTON, 1930
M. tenuiceps SWINTON, 1930 (Type)

Genus: Maresaurus GASPARINI, 1997
M. coccai GASPARINI, 1997 (Type)

Genus: Megacephalosaurus SCHUMACHER, CARPENTER, & EVERHART, 2013
M. eulerti SCHUMACHER, CARPENTER, & EVERHART, 2013 (Type)

Genus: Megalneusaurus KNIGHT, 1898
M. rex KNIGHT, 1898 (Type)
= Cimoliasaurus rex (KNIGHT, 1895)

Genus: Pachycostasaurus CRUICKSHANK, MARTILL & NOE, 1996
P. dawni CRUICKSHANK, MARTILL & NOE, 1996 (Type)

Genus: Peloneustus LYDEKKER, 1889
P. philarchus (SEELEY, 1869) LYDEKKER, 1889 (Type)
= Plesiosaurus philarchus SEELEY, 1869
= Thaumatosaurus philarchus (SEELEY, 1869) LYDEKKER, 1888
= Pliosaurus evansi SEELEY, 1869
= Peloneustus philarchus var spathyrhynchus LINDER, 1913
P. kiangschenensis ZHAO, 1986
P. Species: Nova O’KEEFE, 1998
P. sp

Genus: Pliosaurus OWEN, 1841
= Stretosaurus TARLO 1959
= Strongylokrotaphus NOVOZHILOV, 1964
P. brachyspondylus OWEN, 1841
= Plesiosaurus brachyspondylus (OWEN, 1841)
= Plesiosaurus recentior PARKSINSON, 1822
= Plesiosaurus giganteus CONYBEARE, 1824 (partim)
= Spondylosaurus frearsi FISCHER de WALDHEIM, 1845
= Pliosaurus frearsi (FISCHER de WALDHEIM, 1845) KUHN, 1934
= Pliosaurus wosinskii FISCHER de WALDHEIM, 1846
= Plesiosaurus nitidus PHILLIPS, 1871
NON Plesiosaurus brachyspondylus 1871
P. brachydeirus (OWEN, 1841) OWEN, 1869 (Type)
= Plesiosaurus brachyderius OWEN, 1841
= Plesiosaurus giganteus CONYBEARE, 1824 (partim)
= Plesiosaurus sterrodeirus SEELEY, 1869
= Pliosaurus suprajurensis SAUVAGE, 1879
P. macromerus (PHILLIPS, 1871)
= Stretosaurus macromerus (PHILLIPS, 1871) TARLO, 1959
= Plesiosaurus macromerus PHILLIPS, 1871
= Pliosaurus grandis OWEN, 1839
= Pliosaurus brachydeirus SEELEY, 1869
= Polyptychodon archiaci DESLONGCHAMPS, 1872?
= Pliosaurus archiaci (DESLONGCHAMPS, 1872) SAUVAGE, 1894
= Liopleurodon macromerus (PHILLIPS, 1871) HALSTEAD, 1989
P. irgisensis (NOVOZHILOV, 1948) TARLO, 1960
= Strongylokrotaphus irgisensis (NOVOZHILOV, 1948) NOVOZHILOV, 1948
= Peloneustes irgisensis NOVOZHILOV, 1948
P. andrewsi TARLO, 1960
= ?Plesiosaurus grandis PHILLIPS, 1871
= Pliosaurus evansi LYDEKKER, 1889
= Peloneustes evansi (LYDEKKER, 1889) LYDEKKER, 1890
= Pliosaurus grossouveri LYDEKKER, 1889 non SAUVAGE 1873
= Peloneustes philarchus LYDEKKER, 1889
= Pliosaurus evansi ANDREWS, 1911 non SEELEY, 1869
= ?Sinopliosaurus weiyuanensis YOUNG, 1946 non YOUNG, 1942
P. weiyuanensis YOUNG, 1971
P. portentificus NOE, SMITH & WALTON, 2004
P. funkeorum emend KNUTSEN, DRUCKENMILLER & HURUM, 2012D
= Pliosaurus funkei KNUTSEN, DRUCKENMILLER & HURUM, 2012D
P. kevani BENSON, EVANS, SMITH, SASSOON, MOORE-FAYE, KETCHUM, & FORREST, 2013
P. carpenteri BENSON, EVANS, SMITH, SASSOON, MOORE-FAYE, KETCHUM, & FORREST, 2013
P. westburyensis BENSON, EVANS, SMITH, SASSOON, MOORE-FAYE, KETCHUM, & FORREST, 2013
P. patagonicus GASPARINI & O’GORMAN, 2014
P. Species nova SASSOON, NOE & BENTON, 2011
P. sp

Genus: Polyptychodon OWEN, 1841
= Polytychodon FINSLEY, 1996 (sic)
= Polyptichodon SACHS, 2000 (sic)
P. interruptus OWEN, 1841 (Type)
= Aptychodon cretaceius REUSS, 1855
P. hudsoni WELLES & SLAUGHTER, 1963
P. sp

Genus: Simolestes ANDREWS, 1909
S. indicus (LYDEKKER, 1876)
= Plesiosaurus indicus LYDEKKER, 1876
= Thaumatosaurus indicus (LYDEKKER, 1876)
= Rhomaleosaurus indicus (LYDEKKER, 1876)
S. vorax ANDREWS, 1909 (Type)
= Thaumatosaurus calloviensis BOGOLOBOV, 1911

Genus: Sinopliosaurus YOUNG, 1942
S. weiyuanensis YOUNG, 1942 (Type)
S. fugolensis HOU, 1975
S. jinyguensis ZHAO, 1986
S. sheziensis XIO et al, 1991
S. sp

Genus: Nova? ALBRIGHT, GILLETTE, TITUS & GRAFFAM, 2001

Genus: Nova DAMONE, 1994

Genus: Nova GOMEZ-PEREZ, & NOE, 2009

Genus: Nova KETCHUM & BENSON, 2011

Genus: Nova MOBBS, 1990

Genus: Nova SELBY, 1993

Gen. sp indet.

Incertae sedis

Genus: Brimosaurus LEIDY, 1854 (nomen dubium)
B. grandis LEIDY, 1854 (Type)
= Cimoliasaurus grandis (LEIDY, 1854) COPE, 1869
= Discosaurus grandis (LEIDY, 1854) LEIDY, 1870 (nomen dubium)

Genus: Cetiosaurus SAUVAGE, 1874 non OWEN, 1841
C. rigauxi SAUVAGE, 1874

Genus: Crymocetus COPE, 1869 (nomen dubium)
= Gymocetus ROMER, 1966 (sic)
C. bernardi (OWEN, 1840) COPE, 1869 (nomen dubium) (Type)
= Plesiosaurus bernardi OWEN, 1840 (nomen dubium)
= Plesiosaurus bernardi OWEN, 1850 (nomen dubium)
= Cimoliasaurus bernardi (OWEN, 1850) FRITISCH, 1905 (nomen dubium)

Genus: Elasmosaurus non COPE, 1868
E. intermedicus COPE 1894 (nomen dubium)
E. sternbergi WILLISOTN 1906 (nomen dubium)
E. sp

Genus: Liopleurodon non SAUVAGE, 1873
L. grossouveri SAUVAGE, 1873 (nomen vanum)
= Pliosaurus grossouveri TARLO, 1960 (non Liopleurodon grossouveri LYEDKKER, 1889)

Genus: Plesiosaurus non CONYBEARE, 1821
P. bernardi OWEN, 1850 non OWEN, 1846
P. australis OWEN, 1861(nomen dubium) (partim)
= Cimoliasaurus australis (OWEN, 1861) (nomen dubium) (partim)
= Elasmosaurus australis (OWEN, 1861) (nomen dubium) (partim)
P. sutherlandi McCOY, 1867(nomen dubium)
= Cimoliasaurus sutherlandi (MacCOY, 1867) (nomen dubium)
= Pliosaurus sutherlandi (MacCOY, 1867) (nomen dubium)
P. crassicostatus OWEN, 1870 (partim) (nomen vanum)
P. simplex PHILLIPS, 1871 (nomen dubium)
P. gulo COPE, 1872 (nomen dubium)
P. holmesi HECTOR ,1874 (partim) (nomen vanum)
= Cimoliasaurus holmesi (HECTOR, 1874) (partim) (nomen vanum)
= Elasmosaurus holmesi (HECTOR, 1874) (partim) (nomen vanum)
P. traversi HECTOR, 1874 (nomen vanum)
P. balticus SCHRODER, 1885 (nomen dubium)
P. mudgei CRAGIN, 1894 (nomen dubium) (partim)

Genus: Pliosaurus non OWEN, 1841
P. chilensis GERVAIS, 1848 (nomen dubium)
= Cimoliasaurus chilensis LYDEKKER, 1889 (nomen dubium)
= Plesiosaurus andium GRAY, 1848 (nomen dubium)
= Cimoliasaurus andium OLIVER, 1921
P. trochanterius
OWEN, 1869 non OWEN, 1840 (nomen dubium)
P. gamma PHILLIPS, 1871 (nomen dubium)
P. aequalis PHILLIPS, 1871 (nomen dubium)
P. planus HULKE, 1883 (nomen dubium)
P. phosphaticus STEFANO, 1903 (nomen dubium)

Genus: Polyctoylus non BOGOLOBOV, 1911
P. tenius HECTOR, 1874 (nomen vanum)
= Cimoliasaurus tenius LYDEKKER, 1889 (nomen vanum)

Genus: Polyptychodon non OWEN, 1841
P. continus OWEN, 1841 (nomen vanum)
= Polyptychodon mackesoni OWEN, 1884 (nomen vanum)
P. arcahi DESLONGCHAMPS, 1872?
P. neocamiensis SCHARDT, 1910 (nomen vanum)
P. sp
= Leutkesaurus (no species named) KIPRIYANOV, 1883 (nomen dubium)

Genus: Sthenarosaurus WATSON, 1911 (nomen dubium)
S. dawkins WATSON, 1911 (Type)

Genus: Taphrosaurus COPE, 1870 (nomen vanum)
T. lockwoodii (COPE, 1869) COPE, 1870 (Type)
= Plesiosaurus lockwoodii COPE, 1869 (nomen vanum)

Genus: Thaumatosaurus MEYER, 1841 (nomen dubium)
T. oolithicus MEYER, 1841 (Type)

Gen. sp indet.

THALASSOPHONEA BENSON & DRUCKENBILLER, 2013

Incertae sedis

Gen. sp indet.

Subfamily: BRACHAUCHENINAE Williston, 1925 (sensu BENSON & DRUCKENMILLER, 2013)
= Family: BRACHAUCHNEIIDAE Williston, 1925

Genus: Brachauchenius WILLISTON, 1903
B. lucasi WILLISTON, 1903 (Type)
B. sp

Genus: Gallardosaurus GASPARINI, 2009
G. iturraldei GASPARINI, 2009 (Type)

Genus: Kronosaurus LONGMAN, 1924
K. queenslandicus LONGMAN, 1924 (Type) non ROMER & LEWIS, 1959
K. boyacensis HAMPE, 1992
K. Species: Nova?
= Kronosaurus n. sp (aff. Kronosaurus boyacensis)

Genus: Liopleurodon SAUVAGE, 1873
L. ferox SAUVAGE, 1873 (Type)
= Polyptychodon ferox (SAUVAGE, 1873) SAUVAGE, 1880
= Pliosaurus ferox (SAUVAGE, 1873) LYDEKKER, 1888
= Pliosaurus giganteus WAGNER, 1852
= ?Ischyrodon meriani MEYER, 1856
= Thaumatosaurus mosquensis KIPRIJANOFF, 1883
L. pachydierus (SEELEY, 1869) TARLO, 1960
= Pliosaurus pachydeirus SEELEY, 1869
= Pliosaurus ferox LYDEKKER, 1888
= Liopleurodon ferox (LYDEKKER, 1888) SAUVAGE, 1905
L. rossicus (NOVZHILOW, 1948) HALSTEAD, 1971
= Pliosaurus? grandis ROZHDESTVENSKY, 1947
= Pliosaurus rossicus NOVZHILOV, 1948
L. Species: Nova? (STOKES, 1994)
L. sp

Genus: Plesiopleurodon CARPENTER, 1996
P. wellesi CARPENTER, 1996 (Type)

Bibliography

Bibliography for taxa list

_____________________________________________________________________________________

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Albers, P. C. H., and Rieppel, O., 2003, A new species of the sauropterygian genus Nothosaurus from the Lower Muschelkalk of Winterswijk, The Netherlands: Journal of Paleontology, v .77, n. 4, p. 738-744.

Albright III, L. B., Gillette, D. D., and Titus, A. L., 2007b, Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah, part 2: polycotylidae Journal of Vertebrate Paleontology, v. 27, n. 1, p. 41-58.

Albright III, L. B., Gillette, D. D., and Titus, A. L., 2007c, Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) tropic shale of southern Utah, part 2: Polycotylidae: repalcement names for the preoccupied genus Palmula and the subfamily Palmulainae: Journal of Vertebrate Paleontology, v. 27, n. 4, p. 1051.

Andrews, C. W., 1895, The pectoral and pelvic girdles of Muraenosaurus plicatus: The Annals and Magazine of Natural History, 6th series, n. 16, p. 31-434.

Andrews, C. W., 1909, On some new Plesiosauria from the Oxford Clay of Peterborough: The Annals and Magazine of Natural History, 8th series, n. 9, p. 418-429.

Andrews, C. W., 1909, A descriptive catalogue of the Marine Reptiles of the Oxford Clay: Part I.,p. 215pp.

Andrews, C. W., 1911, Description of a new plesiosaur (Plesiosaurus capensis, sp. nov.) from the Uitenhage beds of Cape Colony: Annals of the South African Museum, v. 1, p. 309-322.

Andrews, C. W., 1922, Note on the Skeleton of a large Plesiosaur (Rhomaleosaurus thorntoni, sp. n.) from the Upper Lias of Northamptonshire: The Annals and Magazine of Natural History, 9th series, n. 10, p. 407-415.

Andrews, C. W., 1922, Description of a new plesiosaur from the Weald Clay of Berwick (Sussex): Quarterly Journal of the Geological Society of London, v. 28, p. 285-298.

Anonymous, 1996, Opinion 1831, Plesiosaurus rugosus Owen, 1840 (currently Eretmosaurus rugosus; Reptilia, Plesiosauria): neotype designated: Bulletin of Zoological Nomenclature, v. 53, n. 1, p. 70-71.

Araujo, R., Louis, J., Polcyn, M, Mateus, O., and Schulp, A., 2011, Plesiosaur structural extreme from the Maastrichtian of Angolia: In: Journal of Vertebrate Paleontology, Supplement to online Journal of Vertebrate Paleontology, 71st Annual Meeting Society of Vertebrate Paleontology, Paris Las Vegas, Las Vegas, Nevada, USA, November 2-5, 2011, Program and Abstracts, p. 63-64.

Araujo, R., Polcyn, M,. Mateus, O., and Schulp, A., 2010, Plesiosaurs from the Maastrichtian of Bentiaba, Namibe Province, Angolia: In: 70th anniversary meeting of the Society of Vertebrate Paleontology, Program and Abstracts, p. 55a.

Araujo, R., Polcyn, M. J., Schulp, A. S., Mateus, O., Jacobs, L. L., Olimpio Goncalves, O., and Morais, M.-L., 2014, A new elasmosaurid from the Early Maastrichtian of Angolia and the implications for girdle morphology and swimming style in plesiosaurs: Netherlands Journal of Geosciences, published online, 12 pp.

Armbourg, C., and Signeux, J., 1952, Les Vertebres fossils des gisements de phosphates, Maroc - Algerie – Tunisie: Not. Mem. Serv. Geol. Maroc., v. 92, p. 1-372.

Arthaber, G., 1924, Die Phylogenie der Nothosaurier : Acta Zoologica, band 5, p. 439-516.

B

Bakker, R., 1993, Plesiosaur Extinction Cycles – events that mark the beginning, middle and end of the Cretaceous: In: Evolution of the Western Interior Basin: Geological Association of Canada, edited by Caldwell, W. G. E., and Kauffman E. G., Special Paper 39, p. 641-664.

Balsamo-Crivelli, G., 1839, Descrizione d’un nuovo rettile fossile, della famiglia die Paleosauri, e di due pesci fossili, trovati nel calcereo nero, sopra Varenna sul lago di como, dal nobile sig. Lodovicio Trotti, con alcune riflessioni geologiche: Politechnico di Milano, v. 5, p. 421-431.

Bardet, N., and Godefroit, P., 1995, Plesiosaurus houzeaui DOLLO, 1909 from the Upper Campanian, of Ciply (Belgium) and a review of the Late Cretaceous plesiosaurs from Europe: Bulletin del l’Instut Royal Des Sciences Naturelles de Belgique, Seciences de la Terre, v. 65, p. 179-196.

Bardet, N., Godefroit, P., and Sciau, J., 1999, A new elasmosaurid plesiosaur from the Lower Jurassic of Southern France: Paleontology, v. 42, part 5, p. 927-952.

Bardet, N., and Hua S., 1996, Simolestes nowackianus HUENE, 1938 from the Late Jurassic of Ethiopia is a teleosaurid crocodile, not a pliosaur: Neües Jahrbuch fur Geologie und Palaontologie Monatschefte, 1996, heft 2, p. 65-71.

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