I think
a, Scientists find new evidence every day to dispel common belief e.g. the world is not round. Opps they haven't proved that wrong yet.
b, We may need to redefine what human really is because we are not the same humans as they were 5,000 years ago. We have evolved from then, HAVEN'T WE?
c, We may need to understand the boundaries of the definition of a dinosaur.
Cambridge online dictionary definition:
2 an old-fashioned person or thing that people no longer consider to be useful:
This typewriter's a bit of a dinosaur, isn't it?
1 a type of reptile which stopped existing about 60 000 000 years ago. There were many different types of dinosaur, some of which were extremely large.
As I cannot remember far back as 5-60 million years I have not concrete proof humans were or were not with the dinosaus. Also I realise evidence to prove this as fact may turn up tommorow. I wait with open mind. Proof is usualy transient in nature if you look at human historical discoveries closley.
As there is no proof right now. The original author is wrong or has his own evidence. I don't care, I just like the debate.
The bone evidence is mounting, check the dates of discoveries on the link below
http://www.bradshawfoundation.com/navigation.html