Giganatasaurus, a bigger T-Rex (probably spelled that wrong)
Mosasaurus, a giant whale essentially, but with four fins and a meat eater!
Titanasaurus a brontosaurus but twice the size (probably spelled wrong as well)
Plesiosaur, its a water dinosaur capable of living and swimming in fresh water as well as the ocean, perhaps a few survived to live in Loch Ness in Scotland although it is highly unlikely, but maybe...
It was going to be diplodocus, but then I just googled and saw titanosaurs are from the same sauropod family and even bigger (the biggest dinosaurs ever discovered, in fact).
I’ll take one titanosaur please.
