Author: Helen Roney Sattler

Information about the author.


Book:The Illustrated Dinosaur Dictionary

The Illustrated Dinosaur Dictionary

Helen Roney Sattler

A dictionary with entries for all known dinosaurs, about 300 at last count, and other animals of the Mesozoic Era, as well as general topics relating to dinosaurs, from Acanthopholis to Zigongosaurus.

Book:Dinosaurs of North America

Dinosaurs of North America

Helen Roney Sattler

Discusses more than 80 different types of dinosaurs native to North America in the context of changing geography, animal and plant communities, and climate during the Mesozoic Era.

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