Final answer:
Dinosaurs did not survive into the Paleocene; this statement is false. The extinction event at the end of the Cretaceous period led to their demise, with only their avian descendants surviving.
Step-by-step explanation:
The statement that dinosaurs survived into the Paleocene is false. Dinosaurs dominated the Mesozoic era, which is also known as the "Age of Reptiles", lasting until the end of the Cretaceous period. The Cretaceous-Tertiary extinction event led to the demise of most large-bodied animals of the Mesozoic era, including all non-avian dinosaurs. The Paleocene is the epoch that followed the mass extinction event, marking the beginning of the Cenozoic Era and the rise of mammals. Birds, which are the descendants of a group of theropod dinosaurs, are the only dinosaurs that survived past the Cretaceous period.