After the dinosaurs

the long version

"Some 42 million years ago - about 20 million years after the demise of the dinosaurs - the area that today is the Lake Casa Blanca International State Park near Laredo was lush tropical forest bordered by coastal mangroves along what was then the Gulf of Mexico. Excavations at the site by Dr. James Westgate and his Lamar University students have uncovered fossils of 29 extinct mammal species and about as many species of crocodiles, turtles, sharks, rays, and giant water snakes. In this book, he reconstructs a clear picture of prehistoric life at Lake Casa Blanca, illustrated with numerous drawings and paintings."--BOOK JACKET.