The Ecology of the Cambrian Radiation - Andrey Zhuravlev - Chapter 9 pot

... Vermeij 199 4; Butterfield 199 7), biogeochemi- cal cycling (e.g., Logan et al. 199 5), and evolutionary tempo and mode (e.g., Knoll 199 4; Rigby and Milsom 199 6). The Cambrian is of course ofparticular ... and Flessa 199 5; Bambach and Bennington 199 6; Jablonski and Sepkoski 199 6); how- ever, it is the taphonomic loss of “soft-bodied” constituents that stands as the over- arch...

Ngày tải lên: 06/07/2014, 21:20

... interval (Didenko et al. 199 4; Kheraskova 199 5; Ruzhentsev and Mossakovsky 199 5; Chuyko 199 6; Evans et al. 199 6; Svyazhina and Kopteva 199 6). The results of a number of studies (stratigraphic, ... result of high speciation rates rather than basin isolation (e.g., Cowie 197 1; Sdzuy 197 2; Jell 197 4; Repina 198 5; Zhuravlev 198 6; Shergold 198 8; Pillola 199 0; Palmer and Row...

Ngày tải lên: 06/07/2014, 21:20

... Pojeta 197 4, 198 5; Yochelson 197 8; Linsley and Kier 198 4; Missarzhevsky 198 9; Peel 199 1; Geyer 199 4; Runnegar 199 6). In this chapter, I follow the systematics of the principal groups of Early Paleozoic ... 197 6; Bengtson 199 2; Starobogatov and Ivanov 199 6). None- theless, the systematic position among the class Mollusca of many of these Cambrian groups is still d...

Ngày tải lên: 06/07/2014, 21:20

... Lingulida, and Acrotretida—ap- peared during the Early Cambrian, the Siphonotretida appeared in the Middle Cam- brian, and the Discinida arose at the end of the Cambrian. 16-C1 099 8/10/00 2:17 PM Page ... and 0 0-1 5 -9 7764. REFERENCES Ager, D. V. 196 2. The occurrence of pedicu- late brachiopods in soft sediments. Geolog- ical Magazine 99 :184 –186. Aksarina, N. A....

Ngày tải lên: 06/07/2014, 21:20

... Geological Sur- vey Organisation Record 199 5/30. Zhuravlev, A. Yu. 199 5. Preliminary sugges- tions on the global Early Cambrian zona- tion. Beringeria Special Issue 2:147–160. 01-C1 099 8/10/00 2:02 ... Davidek et al. 199 8 and Jago and Haines 199 8. 01-C1 099 8/10/00 2:02 PM Page 7 INTRODUCTION 3 scrutinized separately, but aspects of their ecology are discussed within analyses...

Ngày tải lên: 06/07/2014, 21:20

... McKerrow 199 5). 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. 199 0. Since then, ... 199 1); East Greenland (Williams 199 5) and eastern North America (Hatcher et al. 198 9; Williams 199 5); western Baltica (Gee 197 5; Gayer and Greiling 198 9); nort...

Ngày tải lên: 06/07/2014, 21:20

... Narbonne et al. 199 4; Nicholas 199 4, 199 6; Smith et al. 199 4; Brasier et al. 199 6). The sea level curve is based on data in Brasier 198 0, 198 2, and 199 5; Notholt and Brasier 198 6; Palmer 198 1; and Bond ... 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 Ceno...

Ngày tải lên: 06/07/2014, 21:20

... 199 3; Derry et al. 199 4; Kaufman and Knoll 199 5; Nicholas 199 6; Hoffman et al. 199 8a,b; Saylor et al. 199 8; Myrow and Kaufman 199 9; Prave 199 9; Brasier and Lindsay, this volume). The strontium isotopic ... et al. 199 0; Kaufman et al. 199 3; Moores 199 3; Knoll 199 4; Kimura et al. 199 7). Almost without excep- tion, wherever there are signs of Neoproterozoic -Cambrian glacial i...

Ngày tải lên: 06/07/2014, 21:20

... 199 2). 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 ... subsequence 1 of Southgate and Shergold ( 199 1). The overlying subsequence 1a of these authors was separated on the basis of the occurrence of the Br...

Ngày tải lên: 06/07/2014, 21:20

... 198 7, 199 1; Droser and Bottjer 198 8; McIlroy 199 6; Droser et al. 199 9a; McIl- roy and Logan 199 9). Trace fossils are relatively common in the late Neoproterozoic, but ichnofabric studies of these ... distribution of organisms (Kidwell 199 0, 199 1). In that the Cambrian radiation is a critical event in the devel- opment of metazoan history, with the advent of skeleto...

Ngày tải lên: 06/07/2014, 21:20