The Pirates of Pangaea by Daniel Hartwell

The year is 1717. The newly discovered island of Pangaea is the most dangerous place on Earth, where dinosaurs still walk the land - Sophie Delacourt has been sent to Pangaea to stay with her uncle. But little does she know its perils - for Pangaea is a lawless wilderness, teeming with cut-throat pirates! Kidnapped and imprisoned, Sophie must escape from the ruthless Captain Brookes and embark upon an epic journey, to find her way home.