Massive herbivorous long-tailed bipedal dinosaur common in Jurassic and Cretaceous times (9)

I believe the answer is:

iguanodon

(Other definitions for iguanodon that I've seen before include "fossil" , "Old lizard" , "Long-tailed bipedal dinosaur" , "Large dinosaur" , "Herbivorous dinosaur" .)

I've seen this clue in The Independent.

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