I suppose it's possible. Hard to imagine though since I believe dragons originated in Asia, and most dinosaur fossiles are from Africa/South America :\
Couple of points. 1st, Dragon myths come from all parts of the world. The version we have now is an amalgamation of them all and 2nd, Marco Polo (From the link you provided) was a big fat liar that never even travelled to most of the places he "documented". That's not the only dubious source on that link either.
Here's a quote from the wikipedia page at http://en.wikipedia.org/wiki/Dinosaur
History of discovery
Dinosaur fossils have been known for millennia, although their true nature was not recognized. The Chinese, whose modern word for dinosaur is konglong (恐龍, or "terrible dragon"), considered them to be dragon bones and documented them as such. For example, Hua Yang Guo Zhi, a book written by Zhang Qu during the Western Jin Dynasty, reported the discovery of dragon bones at Wucheng in Sichuan Province. Villagers in central China have long unearthed fossilized "dragon bones" for use in traditional medicines, a practice that continues today.
Sorry, but there is lots of factual evidence linking dragons myths to Dinosaur bones (as well as elephant and rhino), which if you take the time to look at it, shows quite strongly where the myths originate.