Virginia Tech
Virginia Polytechnic Institute: Greenhouse Dinosaur Extinction Theory
This comprehensive page discusses the Asteroid Impact vs. Volcano-Greenhouse dinosaur extinction debate. It was written by paleontologist, professor, and scientist Dr. Dewey McLean.
Other
Dinosaur Extinction: One More Hypothesis
"The survivals and extinctions at the close of the Cretaceous are such as might be expected to result from intensely hot winds such as would be generated by extra large meteoritic impacts." This article suggests that this theory should...
Center for Educational Technologies
Earth Science Explorer: Dinosaur Floor
Take a tour of the dinosaur floor and you'll read several theories about why dinosaurs became extinct.
Enchanted Learning
Enchanted Learning: Zoom Dinosaurs
Zoom Dinosaurs is a comprehensive on-line hypertext book about dinosaurs. It is designed for students of all ages and levels of comprehension. It has an easy-to-use structure that allows readers to start at a basic level on each topic,...
BBC
Bbc: Rise and Fall of the Dinosaurs
Several articles that trace the chronology of the dinosaur from the Triassic to the Cretaceous. Articles were written to accompany the BBC series, Walking with Dinosaurs.
Other
Canal Kids: Dinossauros (Dinosaurs), a Era Dos Gigantes
A good introduction to dinosaurs for young Portuguese-speaking children. Uses an engaging writing style, cartoon-style graphics, and animation to teach about the Mesozoic era. Coverage includes types of dinosaurs and their features,...
Other
Scientists Say Star Collision Caused Dinosaur Extinction
"Israeli scientists have a new theory on why the dinosaurs became extinct: cosmic radiation that bombarded the Earth following the collision of two neutron stars." This article discusses the details of the theory.
University of California
Ucmp: The Dinosauria
The Dinosauria provides the latest information about dinosaurs, including debunking myths, early dinosaur discoveries, characteristics of specific dinosaurs, life history, and discovery of dinosaur fossils.
Other
Dinosaurs' End, the Gravitational Hypothesis
The author of this site feels that there are too many problems with the current theories for why dinosaurs became extinct. He believes that his gravitational hypothesis is the correct answer, the dinosaurs suddenly got too heavy.
Curated OER
Who Dunnit to the Dinosaurs?
"One of the great mysteries in science is the extinction of the dinosaurs at the end of the Mesozoic Era some 65 million years ago. Who (or more likely what) caused it is unknown and a subject of great debate." Many theories are touched...