Thanks to the Jurassic Park/World movies there have been an increase in new hybridized dinosaurs that have become popular with children. Sadly, because they ARE fictitious, I won’t be “bringing back” one of those, which would be greatly disappointing to my nieces and nephews if I ever actually had the chance to do this.
As much as paleontologists may have discovered, there is no guarantee of knowing which species of dinosaur were aggressive. It’s all educated-guess work. Instead, I’d have to choose something that makes a little more sense. I wouldn’t want to bring back anything that could have been too aggressive and carnivorous. So I’d have to pick something that we can almost certainly define as herbivorous, and has features that might allow us to determine that it was more passive.
Regardless of most of that logic, I am going to pick something I liked as a kid.
I would pick the Triceratops. To the best of our knowledge, they were herbivores, they’re not stupidly huge (I mean, they’re still BIG, but definitely not 30 feet tall or something) and I just think they look cool.
The Dragon's Grove 