Family

Nothosauridae Baur, 1889

Classification
Organism groupBiota
KingdomAnimalia
PhylumChordata
SubphylumVertebrata
Organism groupGnathostomata
SuperclassTetrapoda
ClassReptilia
SubclassEureptilia
unrankedDiapsida
OrderSauropterygia
FamilyCyamodontidae
Nothosauridae
SubfamilyNothosaurinae
FamilyPlacodontidae
GenusPlesiosaurus