There is a lot of philosophy in your post in which I'm not one to trust. There are many creation websites that will provide you with answers for tree rings. Its up to you to go there and find out. I cannot do that for you. I'm not the forceful type. You did not name the man who invented the time machine and therefore you cannot verify any of the data you claim to know. All of this is based on philosophy and not scientific method. There is ample proof that dinosaurs and man co-existed. There are authentic petroglyphs and engravings all over the world that prove this. There are plenty of ancient text to go along with those petroglyphs. While I'm not here to give you a long sermon on dinosaurs I will demonstrate a texts that goes along with an engraving.
In the Golan Heights region of Israel, there lies the ancient ruins in an ancient Roman town where there is a Jewish synagogue called Umm El-Kanatir that was inhabited between 400-749 AD. At the base of one of the pillars of the synagogue, was an engraving of two theropod dinosaurs attacking what appears to be a horse or an elephant (most likely a horse). This is evidence for theropods in ancient Israel.
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Then we have a verse in the Apocrypha about theropods before the Christian era.
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Now when you read the entire context of this chapter you are not reading about something that happened in 50 B.C. This passage is a reflection of creation and some of the terrifying beasts God created. Clearly man has seen and recorded these terrifying beasts. The description here favors theropods since that would cause me to describe something like what you see described in this passage. Is the pasaage exaggerated by man's fear? I think it is. I think the exaggeration is there to expound on the fear that any man would feel if they encountered a theropod in the wild. And there are many sauropod texts and petroglyphs.