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Skulls of Horned Dinosaurs. The lower row, Ceratops, Styracosaurus, Monoclonius, are from the Middle Cretacic (Belly River formation) of Alberta; Anchiceratops is from the Upper Cretacic (Edmonton formation) of Alberta; Triceratops and Torosaurus from the uppermost Cretacic (Lance formation) of Wyoming.
- Author
- The Project Gutenberg eBook, Dinosaurs, by William Diller Matthew Published 1915
- Posted on
- Saturday 21 March 2020
- Dimensions
- 1000*807
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