Help me remember these Dinosaur movies?

I really need help finding these Dinosaur movies, the 1st i beleive had two sequels, it was like these people found these tiny dinosaurs and they were really friendly and they took them home or something, it was a live action movie i remember watching it alot when i was little (in the 90s). the second was a wierd move where these kids went to a world with humanoid dinosaurs, and i remember they had a funny donosaur song or maybe rap i dont remember, again live action and i think from the 90's. also this isnt a dino movie but i thaught id ask anyway, theres two kid movies that im looking for, one is an old loch ness monster movies from maybe the 90's and the second which i think is also from the 90's was this kid who gets a baby dragon and raises it, it takes place in midevil times i think, and i think the box art was him flying on the dragon. anyway pleese someone has to know these movies! its killing me lol