Author search: "O'Hearn, Michael"
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- 3.8 out of 5 stars
Triceratops Vs. StegosaurusTriceratops Vs. Stegosaurus, BookWhen Horns and Plates Collide
by O'Hearn, Michael - 4.1 out of 5 stars
Spinosaurus Vs. GiganotosaurusSpinosaurus Vs. Giganotosaurus, BookBattle of the Giants
by O'Hearn, Michael - 3.8 out of 5 stars
Allosaurus Vs. BrachiosaurusAllosaurus Vs. Brachiosaurus, BookMight Against Height
by O'Hearn, Michael