Before anything I wanna make it clear that this is NOT intended to attack Trey or say that he is stupid or something like this. So :iconagentlemanscientist: I hope it helps you.
If you have been on the paleo community for quite a time, you surely know about Trey the Explainer. I have learned many things by watching his videos (and you certainly did as well). But as he said himself "We all commit mistakes" and since he tries to pay close attention from the Cambrian period to even famous criptids, we can simply not actually blame him for this. Heere are 5 of these mistakes.
5: JW's mosasaurus was Kaiju sized
Okay, not about a REAL creature, but still a mistake. Well, the idea of the mutated mosasaurus being kaiju sized comes from people that examined the scene where it eats a great white shark (and also comparing it to the woman standing). But take a closer look: http://orig13.deviantart.net/79d1/f/2015/032/c/a/jurassic_world_mosasaur_comparison_by_sonichedgehog2-d8gbw1k.jpg the ficticio