I hope someone senior at Amazon reads this. It is high time Amazon got its act together and learned to distinguish, in its 'if you liked that you'll like this' e-mail ads, between different levels of non-fiction - in particular, between texts on aspects of the sciences written by professionals and intended for (1) the intelligent layman; (2) for other specialists; or (3) as textbooks for senior undergraduates or research students. The present book, I found to my disappointment, falls in categories (2) or (3); it is rich in technical terms and in particular assumes a familiarity with taxonomy and comparative skeletal anatomy and all those long Latin words. This is NOT intended as a criticism of Dr. Kemp, who has done what he set out to do for his intended audience, but of the publicity staff at Amazon. I am a retired academic chemist with a broad (though sometimes basic!) acquaintance with the other sciences, and I have to say that I got far more out of Donald Prothero's book on Tertiary mammals (even though understabably he does not deal with the mammals of the Mezozoic and their amniote predecessors), than from the present one. Amazon, pay attention!
One further point: even professionals, at any rate fledgling ones, may have difficulty visualizing the whole animal from a complete and articulated skeleton. I know paleontologists hate the kind of 'Life in the Jurassic' museum diorama which depicts beasts and plants convincingly but mixes individuals which were in fact separated in place or time or both; but I would have loved to have seen more sketches of the animals as they would have appeared in life, juxtaposed perhaps with the skeletons. The very few examples given in Kemp's book make one want more!