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Science 5 October 1990:
Vol. 250. no. 4977, pp. 104 - 107
DOI: 10.1126/science.11538072
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Articles

Science, Vol 250, Issue 4977, 104-107
Copyright © 1990 by American Association for the Advancement of Science

articles

A bangiophyte red alga from the Proterozoic of arctic Canada

NJ Butterfield, AH Knoll, and K Swett

Botanical Museum, Harvard University, Cambridge, MA 02138, USA.

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-Ediacaran eukaryotes and contributes to growing evidence that multicellular algae diversified well before the Ediacaran radiation of large animals.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Assessing red algal supraordinal diversity and taxonomy in the context of contemporary systematic data.
G. W. Saunders and M. H. Hommersand (2004)
Am. J. Botany 91, 1494-1507
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Phosphatized multicellular algae in the Neoproterozoic Doushantuo Formation, China, and the early evolution of florideophyte red algae.
S. Xiao, A. H. Knoll, X. Yuan, and C. M. Pueschel (2004)
Am. J. Botany 91, 214-227
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Changes in organic matter production and accumulation as a mechanism for isotopic evolution in the Mesoproterozoic ocean.
T. D. Frank, T. D. FRANK, L. C. KAH, and T. W. LYONS (2003)
Geological Magazine 140, 397-420
   Abstract »    Full Text »    PDF »
A Structural and Phylogenetic Analysis of the Group IC1 Introns in the Order Bangiales (Rhodophyta).
K. M. Muller, J. J. Cannone, R. R. Gutell, and R. G. Sheath (2001)
Mol. Biol. Evol. 18, 1654-1667
   Abstract »    Full Text »    PDF »
The hierarchical structure of organisms: a scale and documentation of a trend in the maximum.
(2001)
Paleobiology 27, 405-423
PALEOBIOLOGY OF THE NEOPROTEROZOIC (UPPER RIPHEAN) SHORIKHA AND BUROVAYA SILICIFIED MICROBIOTAS, TURUKHANSK UPLIFT, SIBERIA.
V. N. Sergeev and V. N. SERGEEV (2001)
Journal of Paleontology 75, 427-448
   Abstract »    Full Text »    PDF »
Testate amoebae in the Neoproterozoic Era: evidence from vase-shaped microfossils in the Chuar Group, Grand Canyon.
(2000)
Paleobiology 26, 360-385
Bangiomorpha pubescens n. gen., n. sp.: implications for the evolution of sex, multicellularity, and the Mesoproterozoic/Neoproterozoic radiation of eukaryotes.
(2000)
Paleobiology 26, 386-404
Delayed herbivory and the assembly of marine benthic ecosystems.
(2000)
Paleobiology 26, 419-430


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