Brother James, sounds like a lucky escape but you captured some rare footage there. I think I can see the tobacco pipe that one of them dropped in his effort to strike you. This proves that dinosaurs smoke tobacco leaves!
Might I recommend that for your safety you were some kind of disguise in the future. that way you may become smore accepted into their culture and be able to make further observations therein. A brief search yielded this result:
It looks like an excellent starting point for anyone wishing to integrate themselves into this ancient civilisation.
Brother Crustinator, while normally I would agree that wearing a disguise is the perfect way to conduct anthropological inquiries, with dinosaurs I would advice caution. Their mating rituals, as displayed in this picture:
are very aggressive and posing as a dinosaur might make you the involuntary target of one of the more lonely dinosaurs.
I would suggest camouflage. Something like this:
should be explored first, as it can bring you close to the dinosaurs on the beach, where they mount their vessels.