num_pages: 96
description: Explains various theories about how dramatic changes in the earth's surface could have caused periodic mass extinctions, with an emphasis on the disappearance of the dinosaurs.
language: English
title: Mass Extinctions: One Theory of Why the Dinosaurs Vanished
titlecomplete: Mass Extinctions: One Theory of Why the Dinosaurs Vanished (Impact Books)
ratings_count: 2
publisher: Franklin Watts