For that matter, if the heyday of the dinosaurs began in the Garden of Eden and lasted until the Flood of Noah, with “humans happily coexisting alongside dinosaurs” during that period, it’s rather odd that the Bible never mentions them. The Old Testament does, after all, quite frequently refer to the various animals with which its human protagonists shared their environment. One would think that great herds of RV-sized sauropods munching contentedly away at the available vegetation (and presumably competing for it with the humans’ domesticated animals) would have been rather noticeable, and that the larger predatory dinosaurs would have been terrifyingly dangerous to humans with primitive technology. But no, the whole Jurassic Park menagerie was apparently deemed unworthy of mention by the author(s) of Genesis.
blogspot.com
And how many animals does the Book of Genesis refer to? Job refers to the behemoth. There are five references to the leviathan. Which Bible are you reading where there are no references to animals?