Untitled Document

SUBCLASS: DIAPSIDA OSBORN, 1903

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA BENTON, 1983

INFRACLASS: EURYAPSIDA COLBERT, 1945
= SUBCLASS: EURYAPSIDA COLBERT, 1945
= SYNAPTOSAURIA
= SUBCLASS: SAUROPTERYGIA OWEN, 1860
= SUBCLASS: SAUROPTERYGIAMORPHA
= ORDER: THEROMORPHA COPE, 1890 (partim) as per HUENE, 1956

Genus: Wayaosaurus ZHOU, 2000
W. geei ZHOU, 2000 (Type)
W. bellus ZHOU, 2000

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

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

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

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

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)

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

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

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

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. 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. Species: Nova SCHOCH, 1999

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

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)

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. sp

Genus: Augustasaurus SANDER, RIEPPEL & BUCHER, 1997
A. hagodorni SANDER, RIEPPEL & BUCHER, 1997 (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: Kwangsisaurus YOUNG, 1959
K. orientals YOUNG, 1959 (Type)
K. lusiensis YOUNG, 1978

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

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

Genus: Seeleyosaurus WHITE, 1940
S. holzmadensis WHITE, 1940 (Type)
= Plesiosaurus guilelmi imperatoris FRAAS, 1910 non DAMES, 1895

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

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

Genus: Plesiosaurus CONYBEARE, 1821
= Halidragon WAGLER, 1830
= Pentatarsostinius HAWKINS, 1840
P. dolichodeirus CONYBEARE, 1824 (Type)
= Plesiosaurus homei GRAY, 1831
P. rugosus OWEN, 1865
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
T. hawkinsii (OWEN, 1840) STORRS & TAYLOR, 1996 (Type)
= Plesiosaurus hawkinsii OWEN, 1840
= Plesiosaurus etheridgii HAWKINS, 1834
= Plesiosaurus? pentatarsostinus HAWKINS, 1834
= Plesiosaurus hexatarsostinus HAWKINS, 1834
= Plesiosaurus triotarsostinus HAWKINS, 1834
= Plesiosaurus cliduchus SEELEY, 1865
= Plesiosaurus eleutheraxon SEELEY, 1865 (nomen dubium)

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

Genus: Plesiosaurus non CONYBEARE, 1821
P. trigonus CUVIER, 1824 (nomen dubium)
P. pentagonus CUVIER, 1824 (nomen dubium)
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. ichthyospondylus 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

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

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

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

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

Genus: Vinialesaurus GASPARINI, BARDET & ITURRALDE-VINENT, 2002
V. caroli (De La TORRE & ROJAS, 1949) GASPARINI, BARDET & ITURRALDE-VINENT, 2002 (Type)
= Cryptocelidus cuervoi caroli De La TORRE & ROJAS, 1949 (nomen dubium)
= Cryptocleidus cuervoi caroli De La TORRE & ROJAS, 1949 (sic)
= Cryptocelidus caroli De La TORRE & ROJAS, 1949 (nomen dubium)

Genus: Colymbosaurus non SEELEY, 1872
C. carinatus (CUVIER, 1824) (nomen dubium)
= Plesiosaurus carinatus CUVIER, 1824 (nomen dubium)
= Plesiosaurus giganulatus COPE, (nomen dubium)
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: Tricleidus non ANDREWS, 1909
T. svalbaudensis PERSSON, 1962 (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)
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. valdensis LYDEKKER, 1889 (nomen dubium)
= Plesiosaurus valdensis (LYDEKKER, 1889) (nomen dubium)
C. andium DECKE, 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

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

Genus: Dolichorhynchops WILLISON, 1902
D. osborni WILLISTON, 1902 (Type)
= Polycotylus osborni (WILLISTON, 1902) WATSON, 1951?
= Trinacromerium osborni (WILLISTON, 1902) KUHN, 1934
D. Species: Novae? SATO & TOKARYK, 1999
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: Polycotylus COPE, 1869
P. latipinnis COPE, 1869 (Type)
P. tenius HECTOR, 1874
P. dolichops WILLLISTON, 1906
P. suprajurensis SAUVAGE, 1876

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)

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 .bonneri ADAMS 1974 (nomen vanum)
T. sp
T. sp (Freshwater)

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)

Family: ELASMOSAURIDAE Cope, 1869
= Family: MURAENOSAURIDAE White, 1940
= Subfamily: MURAENOSAURINAE White, 1940
= Family: BRANCASAURIDAE White, 1940
= Family: TREMAESACLIDINIDAE White, 1940
= Subfamily: TREMAESACLEIDINAE White, 1940

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

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

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: Libonectes CARPENTER, 1997
L. morgani (WELLES 1949) (Type)
= Elasmosaurus morgani WELLES, 1949

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. guilelmi imperatoris (DAMES 1895) MENNER, 1992
= Plesiosaurus guilelmi imperatoris DAMES, 1895
= Plesiosaurus imperatoris guilelmi MENNER, 1992
M. brachypterygius (HUENE, 1923), BAKKER, 1993
= Plesiosaurus brachypterygius HUENE, 1923
M. sp

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
= Cryptocleidus? vignalensis De La TORRE & CUERVO, 1949 (on a label)
= Cryptocleidus cuervoi ROJAS, 1949 (nomen dubium)
= Cryptoceildus cuervoi avesadai ROJAS, 1949 (nomen dubium)
M. belcolis SEELEY, 1892
= Pirocleidus beloclis (SEELEY, 1892) ANDREWS, 1909

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

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
= Polyctoylus 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

Genus: Turangisaurus WIFFEN & MOISLEY, 1986
= Tuarangisaurus GASPARINI, SALGADO & CASADIO, 2003 (sic)
T. keysei WIFFEN & MOISLEY, 1986 (Type)
T? cabazai emend GASPARINI, SALGADO & CASADIO, 2003
= Tuarangisaurus? cabazai GASPARINI, SALGADO & CASADIO, 2003 (sic)

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: 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 RIABININ, 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: 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: 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. mexicanus WIELAND, 1910 (nomen dubium)
P. mauritanicus AMBOURG, (& SIGNEUX) 1952 (nomen dubium)
P. sp

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

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

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

Genus: Rhomaleosaurus SEELEY, 1874
= Thaumatosaurus FRAAS, 1910
R. megacephalus (STUTCHBURY, 1846)
= Plesiosaurus megacephalus STUTCHBURY, 1846
= Plesiosaurus megacephalus (sic) recte megacephalus STUTCHBURY, 1846, ANON, 1851
= Eurycleidus megacephalus (STUTCHBURY, 1846) KUHN, 1934
= Thaumatosaurus megacephalus (STUTCHBURY, 1846) HUENE, 1921
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. victor FRAAS, 1910
= Thaumatosaurus victor (FRAAS, 1910)
R. thorntoni ANDREWS, 1922
R. sp

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

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

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

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

Genus: Macroplata SWINTON, 1930
M. longirostris (BLAKE, in TATE & BLAKE, 1876) WHITE, 1940
= Plesiosaurus longirostris BLAKE, in TATE & BLAKE, 1876
M. tenuiceps SWINTON, 1930 (Type)

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
= Strongylokrotaphus NOVOZHILOV, 1964
= Stretosaurus TARLO 1959

P. brachyspondylus OWEN, 1841 (Type)
= 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
= Plesiosaurus brachyderius OWEN, 1841
= Plesiosaurus giganteus CONYBEARE, 1824 (partim)
= Plesiosaurus sterrodeirus SEELEY, 1869
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, 160
= Strongylokrotaphus irgisensis (NOVOZHILOV, 1948) NOVOZHILOV, 1964
= 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. 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. fusuiensis HOU, YEH & ZHAO, 1975
S. jinyguensis ZHAO, 1986
S. sheziensis XIO et al, 1991
S. sp

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: 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 grossouvrei TARLO, 1960 (non Liopleurodon grossouvrei 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) (nomen vanum) (partim)
= Elasmosaurus holmesi (HECTOR, 1874) (nomen vanum) (partim)
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: Polyptychodon non OWEN, 1841
P. continus OWEN, 1841 (nomen vanum)
= Polyptychodon mackesoni OWEN, 1884 (nomen vanum)
P. arcahi DESLONGCHAMPS, 1872?
P. patagonicus AMEGHINO, 1898 (nomen vanum) (Possibly a crocodile)
P. neocamiensis SCHARDT, 1910 (nomen vanum)
P. sp
= Leutkesaurus (no species named) KIPRIYANOV, 1883 (nomen dubium)

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

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)
T. carinatus (CUVIER, 1829, non PHILLIPS, 1871)
= Plesiosaurus carinatus CUVIER, 1829, non PHILLIPS, 1871

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

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)

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