Love in the Cretaceous takes place in a dinosaur park in Oregon a hundred years in the future. Ted Beebe has lost the love of his life and must suddenly find his way alone in old age. He finds young people to take the place of his wife and himself in assuring the survival of Cretaceous World, the park his wife and he created. Global warming has proceeded as predicted, and the fate of Homo sapiens has become obviously uncertain. People come to see the genetically engineered recreations of dinosaurs and are made more aware of humanity's own vulnerability to extinction. Ted succeeds in creating a new family structure whose three generations will guide the park through the immediate future. He also keeps alive his wife's memory while coping with the challenges of the uncertain future.