Plannosaurus Gachi Koseibutsu-bu

Kanna, a second-year middle school student aiming to become an idol, goes to the paleontology club to complain about noise. There, she's forcibly challenged to a quiz battle by Tetori, a paleontology otaku, with her club membership as the stake! Did Tyrannosaurus Rex stand up like that monster? Or did it have feathers? What are the secrets of dinosaurs whose appearance changed with time!?