Publication: A Bangiophyte Red Alga from the Proterozoic of Arctic Canada
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Date
1990
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American Association for the Advancement of Science
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Butterfield, Nicholas J., Andrew H. Knoll, and Keene Swett. 1990. A Bangiophyte red alga from the Proterozoic of arctic Canada. Science 250 (4977): 104-107.
Abstract
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.
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