It also explains why dragons can look so different in the myths of the various regions.
In asia, Dragons tend to look very long and snake like:
One of the most common dinosaurs that used to like in the asia region, so would have been the most common fossils found by people:
The Mamenchisaurus, this thing is just all neck and tail! You find just half a fossilised skeleton of this monster, you can easily end up thinking of a long snake-like beast.
South America also has legends snake-like dragons among some of its peoples:
What fossils from pre-historic south America could be found?
The Titanoboa, which can easily grow to be 40 feet long.
In North America there is the Piasa Bird
Which wikipedia tells me comes from ā the large Mississippian culture city of Cahokia,ā itās describes as
What fossils could have been found in that region:
Pterosaur, and Triceratops. Features of both sets of skeletons could have been merged into one legendary creature.
Then we get our European style dragon:
One of the most common fossils that could have been found was a CetiosaurusĀ
which, despite being a herbivore, looked to have a mouth of sharp looking teeth, consistant with a dragons.
Dragons amongst the peoples of Africa are even more varied, but most revolve around some kind of giant snake-like creature. As a quick example, weāll take Dan Ayido Hwedo commonly found in West African mythology.
Fossils in that area could have been included the Aegyptosaurus:
A quick google search tells me that most Sauropods: well known for being long necked and long tailed, are found in Africa.
If you found only a half complete skeleton of this thing; which is likely, because itās rare to find a complete dinosaur skeleton, you could easily think of a giant snake monster.