PBDB

Opinions from S. P. Welles 1962

'Alzadasaurinae belongs to Elasmosauridae'
'Alzadasaurus belongs to Alzadasaurinae'
'Alzadasaurus colombiensis belongs to Alzadasaurus'
'Alzadasaurus kansasensis belongs to Alzadasaurus'
'Alzadasaurus pembertoni belongs to Alzadasaurus'
'Alzadasaurus riggsi belongs to Alzadasaurus'
'Alzadasaurus tropicus is a nomen vanum' according to Welles 1952
'Alzadasaurus tropicus is a nomen vanum'
'Aphrosaurus belongs to Alzadasaurinae'
'Aphrosaurus furlongi belongs to Aphrosaurus'
'Aptychodon cretaceus belongs to Aptychodon' according to Reuss 1855
'Aptychodon cretaceus is a nomen vanum'
'Aristonectes belongs to Plesiosauria'
'Aristonectes parvidens belongs to Aristonectes'
'Brachauchenius belongs to Plesiosauria'
'Brachauchenius lucasi belongs to Brachauchenius'
'Brancasaurus belongs to Elasmosaurinae'
'Brancasaurus brancai belongs to Brancasaurus'
'Brimosaurus grandis is a nomen vanum'
'Plesiosaurus vaccinsulensis is a nomen vanum'
'Cimoliasaurus andium is a nomen vanum'
'Cimoliasaurus caudalis belongs to Cimoliasaurus' according to Hutton 1894
'Cimoliasaurus caudalis is a nomen vanum'
'Cimoliasaurus leucoscopelus is a nomen vanum' according to Persson 1960
'Cimoliasaurus leucoscopelus is a nomen vanum'
'Cimoliasaurus lissaensis is a nomen vanum'
'Cimoliasaurus maccoyi is a nomen vanum'
'Cimoliasaurus maccoyi is a nomen vanum' according to Persson 1960
'Cimoliasaurus teplicensis belongs to Cimoliasaurus' according to Fritsch 1907
'Cimoliasaurus teplicensis is a nomen vanum'
'Cimoliasaurus valdensis is a nomen vanum'
'Cimoliasaurus cantabrigiensis is a nomen vanum'
'Cimoliosaurus cantabrigiensis is recombined as Cimoliasaurus cantabrigiensis' according to Lydekker 1889
'Cimoliasaurus magnus is a nomen vanum'
'Cimoliosaurus magnus is recombined as Discosaurus magnus' according to Leidy 1870
'Cimoliosaurus nazarowi is a nomen vanum'
'Elasmosaurus snowii is a nomen vanum'
'Plesiosaurus neogaeus is a nomen vanum'
'Crocodilus neogaeus belongs to Crocodilus' according to Burmeister 1861
'Crocodilus neogaeus is recombined as Plesiosaurus neogaeus' according to Huene 1927
'Cryptocleidus cuervoi belongs to Cryptocleidus' according to Torre and Rojas 1949
'Cryptocleidus cuervoi is a subjective synonym of Muraenosaurus leedsii'
'Cryptocleidus cuervoi caroli belongs to Cryptocleidus cuervoi' according to Torre and Rojas 1949
'Cryptocleidus cuervoi quesadai belongs to Cryptocleidus cuervoi' according to Torre and Rojas 1949
'Discosaurus carinatus is a subjective synonym of Elasmosaurus platyurus' according to Cope 1868
'Discosaurus planior is a nomen vanum'
'Discosaurus planior belongs to Discosaurus' according to Leidy 1870
'Discosaurus planior is recombined as Cimoliasaurus planior' according to Cope 1875
'Discosaurus vetustus is a nomen vanum'
'Dolichorhynchopidae belongs to Plesiosauria'
'Dolichorhynchops belongs to Dolichorhynchopidae'
'Dolichorhynchops osborni belongs to Dolichorhynchops'
'Elasmosauridae belongs to Plesiosauroidea'
'Elasmosaurinae belongs to Elasmosauridae'
'Elasmosaurus belongs to Elasmosaurinae'
'Elasmosaurus amalitskii belongs to Elasmosaurus' according to Pravoslavlev 1916
'Elasmosaurus amalitskii is a nomen vanum'
'Elasmosaurus intermedius is a nomen vanum'
'Elasmosaurus kurskensis is a nomen vanum'
'Elasmosaurus kurskensis belongs to Elasmosaurus' according to Bogolubov 1911
'Elasmosaurus marshii is a nomen vanum'
'Elasmosaurus morgani belongs to Elasmosaurus'
'Elasmosaurus nobilis is a nomen vanum'
'Elasmosaurus orientalis is a nomen vanum'
'Elasmosaurus orientalis is recombined as Discosaurus orientalis' according to Leidy 1870
'Elasmosaurus orskensis belongs to Elasmosaurus' according to Bogolubov 1911
'Elasmosaurus orskensis is a nomen vanum'
'Elasmosaurus platyurus belongs to Elasmosaurus'
'Elasmosaurus serdobensis belongs to Elasmosaurus' according to Bogolubov 1911
'Elasmosaurus serdobensis is a nomen vanum'
'Elasmosaurus serpentinus is recombined as Hydralmosaurus serpentinus'
'Elasmosaurus sternbergi is a nomen vanum'
'Embaphias circulosus is a nomen vanum'
'Fresnosaurus belongs to Alzadasaurinae'
'Fresnosaurus drescheri belongs to Fresnosaurus'
'Hunosaurus fasseli is a nomen vanum'
'Hydralmosaurus belongs to Alzadasaurinae'
'Hydrotherosaurus belongs to Alzadasaurinae'
'Hydrotherosaurus alexandrae belongs to Hydrotherosaurus'
'Iserosaurus littoralis is a nomen vanum'
'Kronosaurus queenslandicus is a nomen vanum'
'Leptocleidus belongs to Dolichorhynchopidae'
'Leptocleidus superstes belongs to Leptocleidus'
'Leurospondylus belongs to Alzadasaurinae'
'Leurospondylus ultimus belongs to Leurospondylus'
'Lutkesaurus is a nomen nudum'
'Mauisaurus brachiolatus belongs to Mauisaurus' according to Hector 1874
'Mauisaurus brachiolatus is a nomen vanum'
'Mauisaurus latibrachialis is a misspelling of Mauisaurus brachiolatus'
'Mauisaurus gardneri is a nomen vanum'
'Mauisaurus haasti is recombined as Elasmosaurus haasti' according to Bogolubov 1911
'Mauisaurus haasti belongs to Mauisaurus'
'Morenosaurus belongs to Alzadasaurinae'
'Morenosaurus stocki belongs to Morenosaurus'
'Muraenosaurus belongs to Plesiosauridae'
'Muraenosaurus leedsii belongs to Muraenosaurus'
'Namuncurania belongs to Plesiosauria' according to Rusconi 1943
'Namuncurania malarguense is a nomen vanum'
'Nothosaurops occiduus belongs to Nothosaurops' according to Leidy 1870
'Nothosaurops occiduus is a nomen vanum'
'Ogmodirus belongs to Alzadasaurinae'
'Ogmodirus martini is a nomen vanum'
'Oligosimus grandaevus is a nomen vanum'
'Orophosaurus pauciporus belongs to Orophosaurus' according to Cope 1887
'Orophosaurus pauciporus is a nomen vanum'
'Peyerus belongs to Dolichorhynchopidae'
'Piptomerus hexagonus is a nomen vanum'
'Piptomerus hexagonus belongs to Piptomerus' according to Cope 1887
'Piptomerus megaloporus belongs to Piptomerus' according to Cope 1887
'Piptomerus megaloporus is a nomen vanum'
'Piptomerus microporus belongs to Piptomerus' according to Cope 1887
'Piptomerus microporus is a nomen vanum'
'Piratosaurus is a nomen vanum'
'Piratosaurus plicatus belongs to Piratosaurus' according to Leidy 1865
'Piratosaurus plicatus is a nomen vanum'
'Plesiosauridae belongs to Plesiosauroidea'
'Plesiosauroidea belongs to Plesiosauria'
'Plesiosaurus (Polyptychodon) mexicanus belongs to Plesiosaurus (Polyptychodon)' according to Wieland 1910
'Plesiosaurus mexicanus is a nomen vanum'
'Plesiosaurus andium belongs to Plesiosaurus' according to Gervais 1859
'Plesiosaurus andium is an objective synonym of Plesiosaurus chilensis'
'Plesiosaurus australis is a nomen vanum'
'Plesiosaurus balticus is recombined as Polycotylus balticus' according to Bogolubov 1911
'Plesiosaurus balticus is a nomen vanum'
'Plesiosaurus bernardi is a nomen vanum'
'Plesiosaurus brevifemur is a nomen vanum'
'Plesiosaurus capensis is recombined as Peyerus capensis'
'Plesiosaurus capensis is recombined as Peyerus capensis' according to Stromer 1935
'Plesiosaurus capensis is recombined as Peyerus capensis' according to Andrews 1911
'Plesiosaurus chilensis is a nomen vanum'
'Plesiosaurus chilensis is recombined as Pliosaurus chilensis' according to Deecke 1896
'Plesiosaurus constrictus is a nomen vanum'
'Plesiosaurus crassicostatus is a nomen vanum'
'Plesiosaurus cycnodeirus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus cycnodeirus is a nomen nudum'
'Plesiosaurus degenhardti is a nomen vanum'
'Plesiosaurus euryspondylus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus euryspondylus is a nomen nudum'
'Plesiosaurus gouldii is a nomen vanum'
'Plesiosaurus gulo belongs to Plesiosaurus' according to Cope 1872
'Plesiosaurus gulo is a nomen vanum'
'Plesiosaurus gurgitis is a nomen vanum'
'Plesiosaurus helmersenii belongs to Plesiosaurus' according to Kiprijanoff 1882
'Plesiosaurus helmersenii is a nomen vanum'
'Plesiosaurus helmersenii is recombined as Elasmosaurus helmersenii' according to Bogolubov 1911
'Plesiosaurus holmesii is a nomen vanum'
'Plesiosaurus hoodii is recombined as Elasmosaurus hoodii' according to Pravoslavlev 1918
'Plesiosaurus hoodii is a nomen vanum'
'Plesiosaurus ichthyospondylus is a nomen vanum'
'Plesiosaurus ichthyospondylus is recombined as Polycotylus ichthyospondylus' according to Bogolubov 1911
'Plesiosaurus ichthyospondylus is recombined as Trinacromerum ichthyospondylus' according to Pravoslavlev 1915
'Plesiosaurus kanzleri belongs to Plesiosaurus' according to Koken 1905
'Plesiosaurus kanzleri is recombined as Peloneustes kanzleri' according to Linder 1913
'Peloneustes kanzleri is a nomen vanum'
'Plesiosaurus latispinus is a nomen vanum'
'Cimoliasaurus limnophilus is a nomen vanum'
'Plesiosaurus lockwoodii is a nomen vanum'
'Plesiosaurus mackayii is a nomen vanum'
'Plesiosaurus macrospondylus is a nomen vanum'
'Plesiosaurus macrospondylus is a nomen vanum' according to Persson 1960
'Plesiosaurus mauritanicus is a nomen vanum'
'Plesiosaurus microdeirus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus microdeirus is a nomen nudum'
'Plesiosaurus mudgei belongs to Plesiosaurus' according to Cragin 1894
'Plesiosaurus mudgei is a nomen vanum'
'Plesiosaurus neocomiensis is a nomen vanum'
'Plesiosaurus nordmanni belongs to Plesiosaurus' according to Eichwald 1869
'Plesiosaurus nordmanni is a nomen vanum'
'Plesiosaurus ophiodeirus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus ophiodeirus is a nomen nudum'
'Plesiosaurus pachyomus is a nomen vanum'
'Plesiosaurus planus is a nomen vanum'
'Plesiosaurus planus trigonalis belongs to Plesiosaurus planus' according to Owen 1864
'Plesiosaurus planus trigonalis is a nomen vanum'
'Plesiosaurus platydeirus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus platydeirus is a nomen nudum'
'Plesiosaurus platydeirus belongs to Plesiosaurus' according to Owen 1854
'Plesiosaurus poecilospondylus belongs to Plesiosaurus' according to Seeley 1869
'Plesiosaurus poecilospondylus is a nomen nudum'
'Plesiosaurus smithii is a nomen vanum'
'Plesiosaurus sutherlandi is a nomen vanum'
'Plesiosaurus traversii is a nomen vanum'
'Pliosauridae belongs to Pliosauroidea'
'Pliosauroidea belongs to Plesiosauria'
'Pliosaurus gigas is a nomen vanum'
'Pliosaurus gigas is recombined as Elasmosaurus gigas' according to Persson 1959
'Pliosaurus gigas is recombined as Plesiosaurus gigas' according to Wegner 1914
'Pliosaurus planus belongs to Pliosaurus' according to Hulke 1883
'Pliosaurus planus is a nomen nudum'
'Polycotylus is a nomen vanum'
'Polycotylus brevispondylus belongs to Polycotylus' according to Bogolubov 1911
'Polycotylus brevispondylus is a nomen vanum'
'Polycotylus dolichopus is a nomen vanum'
'Polycotylus donicus belongs to Polycotylus' according to Pravoslavlev 1915
'Polycotylus donicus is a nomen vanum'
'Polycotylus epigurgitis belongs to Polycotylus' according to Bogolubov 1911
'Polycotylus epigurgitis is a nomen vanum'
'Polycotylus ichthyospondylus tanais belongs to Polycotylus ichthyospondylus' according to Bogolubov 1911
'Polycotylus ichthyospondylus tanais is a nomen vanum'
'Elasmosaurus ischiadicus is a nomen vanum'
'Polycotylus ischiadicus is recombined as Ogmodirus ischiadicus' according to Williston and Moodie 1917
'Polycotylus latipinnis is a nomen vanum'
'Polycotylus orientalis belongs to Polycotylus' according to Bogolubov 1911
'Polycotylus orientalis is a nomen vanum'
'Polycotylus orientalis is recombined as Trinacromerum orientale' according to Pravoslavlev 1915
'Polycotylus tenuis is a nomen vanum'
'Polycotylus ultimus belongs to Polycotylus' according to Bogolubov 1911
'Polycotylus ultimus is a nomen vanum'
'Polycotylus ultimus is recombined as Trinacromerum ultimum' according to Pravoslavlev 1915
'Polyptychodon continuus is recombined as Plesiosaurus continuus' according to Eichwald 1869
'Plesiosaurus continuus is a nomen vanum'
'Polyptychodon interruptus is a nomen vanum'
'Polyptychodon mackesoni belongs to Polyptychodon' according to Owen 1884
'Polyptychodon mackesoni is a nomen vanum'
'Polyptychodon neocomiensis belongs to Polyptychodon' according to Schardt 1910
'Polyptychodon neocomiensis is a nomen vanum'
'Polyptychodon patagonicus belongs to Polyptychodon' according to Ameghino 1893
'Polyptychodon patagonicus is a nomen vanum'
'Purranisaurus belongs to Plesiosauria' according to Rusconi 1948
'Purranisaurus potens belongs to Purranisaurus' according to Rusconi 1948
'Purranisaurus potens belongs to Purranisaurus' according to Rusconi 1948
'Stereosaurus cratynotus belongs to Stereosaurus' according to Seeley 1869
'Stereosaurus cratynotus is a nomen nudum'
'Stereosaurus platyomus belongs to Stereosaurus' according to Seeley 1869
'Stereosaurus platyomus is a nomen vanum'
'Stereosaurus stenomus belongs to Stereosaurus' according to Seeley 1869
'Stereosaurus stenomus is a nomen nudum'
'Styxosaurus belongs to Alzadasaurinae'
'Styxosaurus browni belongs to Styxosaurus'
'Thalassomedon belongs to Alzadasaurinae'
'Thalassomedon hanningtoni belongs to Thalassomedon'
'Trinacromerum is a nomen vanum'
'Trinacromerum anonymum is a nomen vanum'
'Trinacromerum bentonianum is a nomen vanum'
'Trinacromerum kirki is recombined as Dolichorhynchops kirki' according to Russell 1932
'Trinacromerum kirki is recombined as Dolichorhynchops kirki'
'Trinacromerum latimanus is a nomen vanum'
'Trinacromerum willistoni is recombined as Dolichorhynchops willistoni'
'Trinacromerum willistoni is recombined as Dolichorhynchops willistoni' according to Junk 1962
'Uronautes cetiformis is a nomen vanum'
'Woolungasaurus glendowerensis is a nomen dubium'