Fossil Hunter (Quintaglio Ascension, Book 2)

Five thousand kilodays ago, God laid the eight eggs of creation. Toroca, a Quintaglio geologist, is under attack for his controversial new theory of evolution. But the origins of his people turn out to be more complex than even he imagined. Now, Toroca must convince Emperor Dybo that evolution is true; otherwise, the territorial violence the Quintaglios inherited from their tyrannosaur ancestors will destroy the last survivors of Earth's prehistoric past