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3. Pellet microfossils: Possible evidence for metazoan life in Early Proterozoic time. Robbins EI; Porter KG; Haberyan KA Proc Natl Acad Sci U S A; 1985 Sep; 82(17):5809-13. PubMed ID: 16593599 [TBL] [Abstract][Full Text] [Related]
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5. Chitinozoans from the late precambrian chuar group of the grand canyon, Arizona. Bloeser B; Schopf JW; Horodyski RJ; Breed WJ Science; 1977 Feb; 195(4279):676-9. PubMed ID: 17816417 [TBL] [Abstract][Full Text] [Related]
6. Alga-like forms in onverwacht series, South Africa: oldest recognized lifelike forms on Earth. Engel AE; Nagy B; Nagy LA; Engel CG; Kremp GO; Drew CM Science; 1968 Sep; 161(3845):1005-8. PubMed ID: 17812798 [TBL] [Abstract][Full Text] [Related]
7. Exceptional preservation of fossils in an Upper Proterozoic shale. Butterfield NJ; Knoll AH; Swett K Nature; 1988 Aug; 334(6181):424-7. PubMed ID: 11542151 [TBL] [Abstract][Full Text] [Related]
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9. Transvaal Stromatolite: First Evidence for the Diversification of Cells about 2.2 x 109 Years Ago. Nagy LA Science; 1974 Feb; 183(4124):514-6. PubMed ID: 17773039 [TBL] [Abstract][Full Text] [Related]
10. High CO2 levels in the Proterozoic atmosphere estimated from analyses of individual microfossils. Kaufman AJ; Xiao S Nature; 2003 Sep; 425(6955):279-82. PubMed ID: 13679912 [TBL] [Abstract][Full Text] [Related]
11. Organically preserved microbial endoliths from the late Proterozoic of East Greenland. Knoll AH; Golubic S; Green J; Swett K Nature; 1986 Jun; 321(6073):856-7. PubMed ID: 11540873 [TBL] [Abstract][Full Text] [Related]
12. Fossil microorganisms from the approximately 2800 to 2500 million-year-old Bulawayan stromatolite: Application of ultramicrochemical analyses. Nagy LA; Zumberge JE Proc Natl Acad Sci U S A; 1976 Sep; 73(9):2973-6. PubMed ID: 16592348 [TBL] [Abstract][Full Text] [Related]
13. Evidence for life on Earth before 3,800 million years ago. Mojzsis SJ; Arrhenius G; McKeegan KD; Harrison TM; Nutman AP; Friend CR Nature; 1996 Nov; 384(6604):55-9. PubMed ID: 8900275 [TBL] [Abstract][Full Text] [Related]
14. Microorganisms from the late precambrian of the grand canyon, Arizona. Schopf JW; Ford TD; Breed WJ Science; 1973 Mar; 179(4080):1319-21. PubMed ID: 17835936 [TBL] [Abstract][Full Text] [Related]
15. Microorganisms from the Late Precambrian of Central Australia. Barghoorn ES; Schopf JW Science; 1965 Oct; 150(3694):337-9. PubMed ID: 17742361 [TBL] [Abstract][Full Text] [Related]
16. Microfossils in cherts from the Mesoproterozoic (Middle Riphean) Debengda Formation, the Olenek Uplift, northeastern Siberia. Sergeev VN; Knoll AH; Kolosova SP; Kolosov PN Stratigr Geol Correl; 1994; 2(1):19-33. PubMed ID: 11539429 [TBL] [Abstract][Full Text] [Related]
17. Early proterozoic microfossils and penecontemporaneous quartz cementation in the sokoman iron formation, Canada. Knoll AH; Simonson B Science; 1981 Jan; 211(4481):478-80. PubMed ID: 17816609 [TBL] [Abstract][Full Text] [Related]
18. Microfossils in conophyton from the soviet union and their bearing on precambrian biostratigraphy. Schopf JW; Sovietov YK Science; 1976 Jul; 193(4248):143-6. PubMed ID: 17759251 [TBL] [Abstract][Full Text] [Related]
19. Glauconite from the Precambrian Belt Series, Montana. Gulbrandsen RA; Goldich SS; Thomas HH Science; 1963 Apr; 140(3565):390-1. PubMed ID: 17815800 [TBL] [Abstract][Full Text] [Related]
20. An actualistic perspective into Archean worlds - (cyano-)bacterially induced sedimentary structures in the siliciclastic Nhlazatse Section, 2.9 Ga Pongola Supergroup, South Africa. Noffke N; Beukes N; Bower D; Hazen RM; Swift DJ Geobiology; 2008 Jan; 6(1):5-20. PubMed ID: 18380882 [TBL] [Abstract][Full Text] [Related] [Next] [New Search]