|This article is for a speculative species; a creature that has not been assigned to a taxon by any official media or material. This article may be deleted in the future for the sake of parsimony.|
Pareiasaurus is an extinct genus of anapsid reptile from the Permian period. It was a typical member of its family, the pareiasaurs, which take their name from this genus.
In The Land Before Time
A Pareiasaurus briefly appears during The Land Before Time III: The Time of the Great Giving, in a scrolling shot of the Great Valley's residents after a fire wrecks their home.