There are numerous accounts of living dinosaurs through out history. Now they are not called dinosaurs in these accounts because the word dinosaur was not invented until 1841. Before the there was another word that was used to referrer to these animals and that word was dragons. Today dragons have been relegated to mythology and accounts of them being seen alive in history are dismissed as myths despite the fact that many dragon sightings are part of historical accounts. There are records and artifacts of living dinosaurs from cultures around the world. One example from
Ica, Peru is known as the Ica stones. The stones were carved 500-1500 AD and they depict many aspects of life including some that have people with dinosaurs.
Dinosaurs are in the Bible, they are mentions dragons 37 times 6 of which are with known real animals. The book Job also describes an animal called Behemoth in Job 40:15-24 the description of which matches a sauropod dinosaur. It also refers to pterodactyls by the term flying serpents and in both cases with known real animals. Even if you don’t believe the Bible these references are significant.
Finally some dinosaurs may still be alive. There have been numerous reports of dinosaurs, pterodactyls and large aquatic reptiles still living today. Most reports come from remote place in Africa, South America, and
Asia but these accounts do exist but are never taken seriously enough by establishment paleontology to be followed up on. One example from the is a possible sauropod dinosaur called Mokele Mbembe. Congo
Now there are on this subject both hardcore skeptics dismiss all accounts out of hand and gullible believers that take accept all accounts with out any discretion at all. The best position is to take these accounts seriously enough to look into them, bit also realize that there have been hoaxes and misidentifications. The key is that you need to be open to the possibility but not be gullible at the same time. Claims should be investigated when possible and picture examined with scrutiny. However out right dismissals is just as bad as gullible belief.