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A Bangiophyte Red Alga from the Proterozoic of Arctic Canada
Nicholas J. Butterfield, Andrew H. Knoll and Keene Swett
New Series, Vol. 250, No. 4977 (Oct. 5, 1990), pp. 104-107
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/2877905
Page Count: 4
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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.
Science © 1990 American Association for the Advancement of Science