| The New Dictionary of Cultural Literacy, Third Edition. 2002. |
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| Alvarez hypothesis |
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| (AL-vuh-rez) The theory that the mass extinction that involved the dinosaurs and many other living things was caused by the impact of a large asteroid on the Earth sixty-five million years ago. | 1 |
| ‡ The hypothesis is named after the father-and-son team of scientists Luis and Walter Alvarez, who first suggested it. | 2 |
| ‡ Evidence indicates that the asteroid fell in the Yucatan peninsula. | 3 |
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| | | The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
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