There are several inconsistencies in the plot summary of this article. For instance, there's a triceratops that yells "go on", or something along those lines in the expositional portion of the opening sequence, before Ducky is even introduced.
And they called Ducky a platypus?! If they'd used the term Duckbill dinosaur, I'd be okay with that, but platypus is simply an idiotic term. It's a mammal for crying out loud.