I’m not so sure. It sure sounds like God described one in Job 41.
https://www.biblegateway.com/passage/?search=Job%2041&version=ESV
Not same but similar (the article mentions the generation of Babel moving eastward....) but similarly, when Genesis mentions:
Genesis 25:5-6 New Living Translation (NLT)
Abraham gave everything he owned to his son Isaac. But before he died, he gave gifts to the sons of his concubines and sent them off to a land in the east, away from Isaac.
The Jewish commentaries say the “gifts” were “impure names of G-d,” ie, the power of “magics” etc... manipulating physicality (but in an improper way.) So something akin to fighting powers/martial arts/mysticism.
There is no reason to believe that “dragons” did not exist.
there are lots of extinct animals
I am not so sure about the breathing flames, but perhaps their breath was really bad.
When I lived in LA and later in SF, I really enjoyed the Chinese New Year parades. And the little red envelopes with a $2 bill inside for good luck.
And today on God’s calendar was His Day of the New Moon,the 1st day of His 6th month in the days of Noah, or His 12th month, in the days of Moses.
And the answer to why the New Moon Day was taught to be different than His 6 Work Days and Sabbath has the answer in Genesis 1:1, John 1:1 and John 1:14.
while no one can know for certain, it’d be easy to understand how fossils of some dinosaurs would be construed as ‘dragons’