Naked foraminiferans revealed

被引:36
作者
Pawlowski, J [1 ]
Bolivar, I
Fahrni, J
de Vargas, C
Bowser, SS
机构
[1] Univ Geneva, Dept Zool & Anim Biol, CH-1224 Geneva, Switzerland
[2] Museum Hist Nat, CH-1211 Geneva 4, Switzerland
[3] New York State Dept Hlth, Wadsworth Ctr, Albany, NY 12201 USA
关键词
D O I
10.1038/19881
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
It is generally assumed that the first fossil appearance of a group of organisms corresponds to its evolutionary origin. But we have molecular evidence that extant members of the most abundant microfossil-forming group, the Foraminifera, include ‘naked’ amoeboid species, indicating that ancestral foraminiferans could be unfossilized. This means that the origin of the group might be much earlier than has been deduced from the fossil record. This might help to explain the conflicting molecular and fossil data on the origin of the Foraminifera. © 1999 Macmillan Publishers Ltd.
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页码:27 / 27
页数:1
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