Maybe. Though, I do recall Revelation making mention of a seven headed dragon..or..something like that.
Either way, back in those times dragons were dragons worldwide. It just seems rather strange that there were dragon statues, carvings, legends, and folklore wolrdwide, yet dinosaurs were hardly, if ever, mentioned. I honestly don't know any historical documents on dinosaurs way back when, but that's not to say they don't exist. I haven't done a lick of research in that area. XD So I'm just kinda throwing it out there....
Still...the resemblence between dragons and dinosaurs are uncanny. The Leviathon and Behemoth mentioned in the Bible, and the dragon myths of today. Some dragons swam, some dinosaurs swam. Some dragons towered over the rest of the world, while there are many large, long-necked dinosaurs. Most importantly, dragons flew. There are flying dinosaurs. There are many dinosaur species yet to be discovered, and some strange ones that really don't get any publicity as the t-rex and raptors did in Jurassic Park, thus people don't know them well or at all.
Of course, this is all based on things mentioned in the Bible. So of course not everybody would agree. Though there is one thing most people, Christian or not, would agree on. The dinosaurs most likely started to dwindle down to very few after a huge, catastrophic event. Now going back to my theory - Great flood. The flood would have wiped out most dinosaurs, as even they would be too big to carry on an ark, large as it was. Thus, that is why I believe that marine dinosaurs still exist today. Allthough evidence shows that lakes such as Loch Ness have very little to support life, that's not to say they're not out there. The oceans & seas are the least explored areas, thus there's a lot more yet to be revealed to humans.
And there I go again. Someday I'd like to meet some Christian paleontologists to discuss this with..it's hard to find anybody who'd likely debate it with me, since I don't go to public school. I guess I'd better stop now......