Spinosaurus / Gray, Susan Heinrichs

Provides a description of the spinosaurus, a dinosaur species that lived from about 100 million to 93 million years ago, discusses the history and study of spinosaurus, and examines the quest to find additional spinosaurus fossils.

Provides a description of the spinosaurus, a dinosaur species that lived from about 100 million to 93 million years ago, discusses the history of spinosaurus and study, and examines the quest to find additional spinosaurus fossils.

Describes what is known about the physical characteristics, behavior, habitat, and life cycle of this dinosaur with the sail-like spine.