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Illustration of Upper Cretaceous landscape. Franz Unger. Album caption: Upper Cretaceous landscape. Franz Unger. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print Illustration of Devonian Period landscape. Album caption: Devonian Landscape. Franz Unger. Unger, Franz. Ideal Views of the Primitive World in Its Geological and Palaeontological Phases. 1863. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print Illustration of Eocene landscape. Franz Unger. Album caption: Eocene Landscape. Franz Unger. Categories: Image; Tags: Illustration Images, Lee, W.T. Collection, photo print