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American Journal of Science|January 1, 1990
Carbonate deposition during the late Proterozoic Era: an example from SpitsbergenA H Knoll, K SwettPolar Research|January 1, 1988
Microfossils in metasediments from Prins Karls Forland, western SvalbardA H Knoll, Y OhtaProceedings of the National Academy of Sciences of the United States of America|May 10, 2001
The biotic crisis and the future of evolutionN Myers, A H KnollJournal of Paleontology|September 7, 2001
Acritarchs and microfossils from the Mesoproterozoic Bangemall Group, northwestern AustraliaR Buick, A H KnollScience (New York, N.Y.)|January 30, 1981
Early proterozoic microfossils and penecontemporaneous quartz cementation in the sokoman iron formation, CanadaA H Knoll, B SimonsonJournal of Paleontology|March 1, 1996
Middle and Late Cambrian sponge spicules from Hunan, ChinaD Xiping, A H KnollSedimentology|January 1, 1989
Marine pisolites from Upper Proterozoic carbonates of East Greenland and SpitsbergenK Swett, A H KnollLethaia|September 7, 2001
Fossil preservation in the Neoproterozoic Doushantuo phosphorite Lagerstatte, South ChinaS Xiao, A H KnollPageof 10