"Dinosaurs." . . "Jurassic Geologic Period." . . . . "From 140 to 190 million years ago" . . "Paleontology." . . . . . . . . "Jurassic record breakers"@en . . . . "Describes the dinosaurs of the Jurassic Period and their extreme characteristics, including examples of the fastest, heaviest, most fearsome, and smallest dinosaur, and dinosaurs with the longest neck, fastest tail, and smallest brain."@en . "Juvenile works"@en . . "Dinosaurs Juvenile literature." . . "Paleontology Jurassic Juvenile literature." . .