GEOGRAPHY OF END-CRETACEOUS MARINE BIVALVE EXTINCTIONS

被引：80

作者：

RAUP, DM

JABLONSKI, D

机构：

[1] Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637

来源：

SCIENCE | 1993年 / 260卷 / 5110期

关键词：

D O I：

10.1126/science.11537491

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Analysis of the end-Cretaceous mass extinction, based on 3514 occurrences of 340 genera of marine bivalves (Mollusca), suggests that extinction intensities were uniformly global; no latitudinal gradients or other geographic patterns are detected. Elevated extinction intensities in some tropical areas are entirely a result of the distribution of one extinct group of highly specialized bivalves, the rudists. When rudists are omitted, intensities at those localities are statistically indistinguishable from those of both the rudist-free tropics and extratropical localities.

引用

页码：971 / 973

页数：3

共 29 条

[1]

ERWIN D H, 1989, Palaios, V4, P424, DOI 10.2307/3514587

[2] BACKGROUND AND MASS EXTINCTIONS - THE ALTERNATION OF MACROEVOLUTIONARY REGIMES [J].