Mosasauroidea

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Mosasauroidea
Temporal range: Late Cretaceous
Mosasaurus 21copy.jpg
Mosasaurus.
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Clade: Pythonomorpha
Superfamily: Mosasauroidea
Gervais, 1853
Families

Aigialosauridae
Mosasauridae

Mosasauroidea is an extinct superfamily of Late Cretaceous lizards that includes the highly marine mosasaurs and their relatives the "aigialosaurs".