The Ecology of the Cambrian Radiation - Andrey Zhuravlev - Chapter 2 ppsx

... 1995). The prob- lem of relating the two scales is complicated by the fact that the base of the Tom- motian was taken as the base of the Cambrian at 570 Ma in Harland et al. 1990. Since then, the ... for 4 42, 470, and 4 82 Ma. Between one-fifth and one- third of the poles for the 500, 520 , 540, 560, and 580 Ma calculations lie more than 40Њ from the APWP. Th...

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... 21 32 111111333456 322 213 421 3 421 3 421 2 21 32 NEM TOMMO- TIAN ATDABA- NIAN BOTO- MAN TOYO- NIAN AM- GAN MARJU- MIAN STEP- TOEAN SUN- WAP- TAN DT 0.7080 0.7090 0.7100 40 50 60 70 80 20 40 20 40 60 80 100 120 5 10 60 15 5 10 15 20 100 545 ... of synecology during the Phanerozoic. In E. C. Dud- ley, ed., The Unity of Evolutionary Biology, 08-C1099 8/10/00 2: 08 PM Page...

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... B. Runnegar. 19 92. Mega- scopic eukaryotic algae from the 2. 1 bil- lion-year-old Negaunee Iron-Formation, Michigan. Science 25 7 :23 2 23 5. Høeg, O. A. 19 32. Ordovician algae from the Trondheim area. ... micro- structures from the Little Dal Group, northwestern Canada. Geology 21 :25 9– 26 2. Vologdin, A. G. 19 62. Drevneyshie vodorosli SSSR [The oldest algae of the USSR]....

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... for the development of infauna (Brasier and Lindsay; Droser and Li; Crimes— chapter 13); how the Early Cambrian biota changed the quality of seawater, thereby allowing the radiation of di- verse ... and radiation of major groups of organisms. The focus is the Cambrian period (tables 1.1 and 1 .2) , but inevitably discussion of these topics also draws on relat...

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... Asturias-León zone); 21 , Armorica- Massif Central (France); 22 , southern Balkans; 23 , Scandi- navia; 24 , Finnmark Zone; 25 , southern Carpathians; 26 , North Caucasus zone; 27 , Urals; 28 , northern ... Rozanov, and A. Yu. Zhuravlev. 1995. The Cambrian System of the Foldbelts of Russia and Mongo- lia. International Union of Geological Sci- ences, Publication 32. Atla...

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... 1994. The period of evolution- ary failure and the dawn of evolutionary success: The record of biotic changes across the Precambrian -Cambrian bound- ary. In S. K. Donovan, ed., The Palaeobiol- ogy ... bulging of the crust and transgression of the platform proceeded. Com- parison of the 87 Sr/ 86 Sr record of the Ediacarian -Cambrian with that of the Cen...

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... vol- canic geomorphology of the Chimborazo- Carihuairazo Massif, Ecuadorian Andes. Transactions of the Royal Society of Edin- burgh (Earth Sciences) 81:91–116. 05-C1099 8/10/00 2: 05 PM Page 1 02 106 ... indicators of the climatic and environmental changes that occurred during the Neoproterozoic- Cambrian transition. They also appear to reveal the occurrence of a discr...

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... 19 92) . The boundary is placed at the base of the Wang- konda Formation and at the base of the trace fossil–bearing sandstones of the Winulta Formation in the Stansbury Basin. The Precambrian -Cambrian ... Australia. Journal of the Geological Society of London 149:185–1 92. Daily, B. 19 72. The base of the Cambrian and the first Cambrian faunas. Unive...

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... beds. DISCUSSION The Cambrian represents a critical point in the development of nearly all biofabrics. Near the base of the Cambrian, there was a significant shift in the nature of sedimen- tary fabrics. ... micro- fossils) from English Precambrian-Cam- brian boundary beds. Geological Magazine 123 :23 7 25 6. Brasier, M. D. 1991. Nutrient flux and the evolutionary explosio...

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... 8/10/00 2: 10 PM Page 20 2 ECOLOGY AND EVOLUTION OF CAMBRIAN PLANKTON 20 3 Figure 9 .2 SEM micrographs of disarticulated filter-feeding mesozooplankton (cladoceran-type branchiopods) from the Lower Cambrian ... global fish- eries. Nature 374 :25 5 25 7. Poinar, G. O., Jr., B. M. Waggoner, and U C. Bauer. 1993. Terrestrial soft-bodied pro- tists and other microorganisms in Triass...

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