The Simon & Schuster Encyclopedia of Dinosaurs and Prehistoric Creatures
Subtitle: A Visual Who's Who of Prehistoric Life
Edition: Rev Upd Su edition
Publisher: Simon & Schuster
Published: October 5, 1999
Language: eng
Format: Hardcover
Number of pages: 312
ISBN-13: 9780684864112
Subjects: Dinosaurs & the prehistoric world; Reference works; Nature/Ecology; Dinosaurs & Prehistoric Creatures; Vertebrate Paleontology; Reference; Nature; Nature / Field Guide Books; Encyclopedias; Nature / Dinosaurs; Dinosaurs; Vertebrates, Fossil; Prehistoric animals; Animals; Life Sciences - Ecology; Science
First sentence: The first known fossil animal to show the beginnings of vertebrate characteristics is Pikaia, which dates from mid-Cambrian times, around 535 million years ago.