Size comparison of the Upper Cretaceous Australian somphospondylian sauropod Wintonotitan wattsi. Unknown regions were restored with Europatitan, Chubutisaurus, Paluxysaurus, Sarmientosaurus, and Euhelopus. The human silhouette 180 cm is from File:Silhouette of man standing and facing forward.svg (CC0).
References
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Europatitan skeletal diagram by Lythronax-argestes
Own work
Slate Weasel