HISTORY as well as science can help us solve many problems. The look of artwork and place of discovery can sometimes be more useful for determining the age of an object as "carbon dating" (which isn't so popular in YEC circles). As I've mentioned in my article, they are found in the tombs of the dead (which are covered by wood roofs. These tombs are really fascinating, if you want to do some research).
I'll assume you hadn't read my previous post before you wrote this (if you had:
1) More on this sooner!
2) Kudos to you! You type very quickly!)
Dinosaurs existed. The mythical creatures you mentioned did not. Also, you must consider that ancient cultures were VASTLY different. To say otherwise would be to neglect the grand heritage of history they left us. Some cultures put a lot of mythology into their art. Many (like lots of Native Americans and Africans) mostly did art from life.
The academy loves nothing more than paradigm-shifting discoveries. That statement alone shows great disregard for history. In history, we usually see the opposite. The Geocentricists didn't give up without a fight. Neither did the flat-earthers. The evolutionists won't either.
Here is a quote from Max Planck (translated of course):
“A new scientific truth is usually not propagated in such a way that opponents become convinced and discard their previous views. No, the adversaries eventually die off, and the upcoming generation is familiarized anew with the truth.”
Max Planck; Vortrage und Erinnerungen, S. Hirzel-Verlag, Stuttgart, 1949 (translated from German)
I do not think that they are ignoring contrary evidence. There really isn't much (if any)