While exploring a new area of Dinosaur Cove with the Wannasaurus, Jamie and Tom discover a baby Ankylosaurus stuck in the mud. They must help it get out of the muddy marsh--but how? Illustrations.

March of the Ankylosaurus 2008, Scholastic Paperbacks, New York, NY

ISBN-13: 9780545053792

Trade paperback

March of the Ankylosaurus 2008, Turtleback Books, New York, NY

ISBN-13: 9781436450348

Turtleback School & Library edition