Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana
Author(s)
Bibliographic Information
Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana
（University of California publications in geological sciences, v. 134）
University of California Press, 1989
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Note
Includes bibliographical references
Description and Table of Contents
Description
This study presents current data on vertebrate survival and extinction across the Cretaceous-Tertiary boundary in Montana. Nearly all the common taxa of reptiles (except dinosaurs), amphibians, and fish survived the end of the Cretaceous Period; extinctions were concentrated among rare groups and those found in near-shore habitats. The author concludes that ocean regression and climatic deterioration may explain these selective extinction patterns better than catastrophic hypotheses.
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