A BANGIOPHYTE RED ALGA FROM THE PROTEROZOIC OF ARCTIC CANADA

被引：145

作者：

BUTTERFIELD, NJ ^{[1
]}

KNOLL, AH ^{[1
]}

SWETT, K ^{[1
]}

机构：

[1] UNIV IOWA,DEPT GEOL,IOWA CITY,IA 52242

来源：

SCIENCE | 1990年 / 250卷 / 4977期

关键词：

D O I：

10.1126/science.11538072

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：

Silicified peritidal carbonate rocks of the 1250- to 750-million-year-old Hunting Formation, Somerset Island, arctic Canada, contain fossils of well-preserved bangiophyte red algae. Morphological details, especially the presence of multiseriate filaments composed of radially arranged wedge-shaped cells derived by longitudinal divisions from disc-shaped cells in uniseriate filaments, indicate that the fossils are related to extant species in the genus Bangia. Such taxonomic resolution distinguishes these fossils from other pre-Edicaran eukaryotes and contributes to growing evidence that multicellular algae diversified well before the Ediacaran radiation of large animals.

引用

页码：104 / 107

页数：4

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