Lost animals : extinct, endangered, and rediscovered species / John Whitfield.

Enhanced descriptions from Syndetics:

Meet the incredible animals that have disappeared due to competition, mass extinctions, hunting, and human activity.

Lost Animals brings back to life some of the most charismatic creatures to inhabit the planet. It captures the imagination with more than 200 incredible photographs, artworks of fossils, and scientific drawings of charming creatures like dodos, paraceratherium (the largest land mammal), spinosaurus (the biggest carnivorous dinosaur), placeoderm fishes (the sharks of their day), and more!

Lost Animals is a captivating documentation of evolution and extinction. Each chapter focuses on a specific time in Earth's history, from the Cambrian explosion (the most intense surge of evolution the world has ever experienced) to present times, with profiles of the key species that lived then. From long extinct animals to Lazarus species--animals that were thought to be extinct before being rediscovered--this book takes readers on a journey through Earth's natural history, highlighting the world's biggest animal losses and its moments of conservational hope.