James Gurney: Dinotopia
(1992 - Turner Publishing) 
(written & illustrated by James Gurney) This single book started a small industry of sequels, novelizations, film projects and associated merchandise. I'd say its 'spine' is a number of finely-detailed fully-finished paintings of a lost land where humans and dinosaurs peacefully co-exist. Gurney also composed the well-regarded plot that weaves a story which those paintings accompany. The book then has a larger amount of looser, more 'sketchy', art-pieces that seem to be afterwards remembered as being of the same quality as the highlights. Very very few of the book's 160 pages have no art whatsoever, though 14 feature diagrams & charts that do act to flesh out the adventure even more. So, there are 121 pages that each work to feature a large painting reproduction, which includes 16 that are used to showcase eight pieces that spread across the central gutter. Almost all of these double-page-spreads are sprawling vistas, so they could still be considered viable in that format. It's certainly an impressive volume all around.
other Dinosaur art
Dinosaurs, Mammoths, And Cavemen - The Art Of Charles R. Knight
Prehistoric Animals [BELOW THE LINE]
other solo illustrated projects
Adolf Schaller: Extraterrestrials - A Field Guide For Earthlings
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