Head bangersFive-horned face with frillsRutting stagsHead crest for courtingAll animals must reproduce themselves if their species is to survive. Today’s animals have developed their own special…
The oldest dinosaur types are known from rocks in Argentina and Brazil and are about 230 million years old. The most primitive of these types, Eoraptor, was a small meat-eating dinosaur. Because…
Estimates of dinosaur speeds vary because several different methods are used to calculate them. One recent estimate suggests that an average person might have been able to to outrun an adult…
No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs.…
Distributor:Weston Woods This humorous animated adaptation of Jane Yolen’s picture book combines engaging narration by the author, additional artwork, and inspired direction to create the memorable…
(Encyclopedia) Allosaurus, late Jurassic carnivorous dinosaur of the W United States. Specimens of 30 to 40 ft (9 to 12 m) have been found. It had stong hind legs, smaller sharply clawed forelimbs,…
(Encyclopedia) IguanodonIguanodonĭgwănˈədŏn [key] [Gr., = iguana tooth], herbivorous ornithiscian dinosaur, characterized by teeth similar to those of the iguana, a horny beak, spikelike thumbs, and…
Dinosaur communities were separated by both time and geography. The “age of dinosaurs” (the Mesozoic Era) included three consecutive geologic time periods (the Triassic, Jurassic, and Cretaceous…
A team of computer scientists and paleontologists from Sandia National Laboratories and the New Mexico Museum of Natural History and Science Museum has recreated the sound that a Parasaurolophus…
(Encyclopedia) DeinonychusDeinonychusdīˌnənīˈkəs [key] [Gr.,=terrible claw], swift bipedal carnivorous dinosaur of the early Cretaceous period, approximately 119–93 million years ago. Fossil…
