Clash! Saurus Fighter

Na-Hae, an ordinary middle school girl who seems no different from any other girls... However, she just happens to be a "dino maniac" that knows everything there is to know about dinosaurs. And one day, a real, live, actual dinosaur appears before Na-Hae's eyes, and drags her off into a new and unknown world! (Part 1 concluded with webtoon episode 20; the series is currently on hiatus)