Anything is possible … maybe there were ancient stories of dinosaurs and dragons ? Maybe they also discovered fossils ?
Leviathan
In the Book of Isaiah, Leviathan is a sea serpent symbolizing Israel's enemies. In the Book of Job, Leviathan is a fire-breathing crocodile, perhaps personifying an aspect of creation that is beyond human comprehension or control. Leviathan, Hebrew Livyatan, in Jewish mythology, a primordial sea serpent….
Genesis 1.21
Hebrew: God created the great sea monsters, and all the living creatures of every kind the creep, which the waters brought forth in swarms, and all the winged birds of every kind. And God saw that this was good.
RE: Dinosaurs and Homosapiens