UID:
almafu_9959973746702883
Umfang:
1 online resource (ix, 277 pages) :
,
illustrations
ISBN:
1-86239-993-X
Inhalt:
The 1986 Cambridge Conference eaxmined the essential utility of graptolites in relative dating of Palaeozoic strata; and this volume contains papers mostly on that theme. They include: A critique of graptolite classification, and a revision of the suborders Diplograptina and Monograptina; Arenig and Llanvirn graptolite biostratigraphy, Canadian Cordillera; Cluster analysis of isograptid individuals from Bullengarook, Victoria, Australia; Heterochrony, punctuated equilibrium, and graptolite zonal boundaries; Graptolite zones in the Ordovician and Silurian of the Gorny Altai; and many more.
Anmerkung:
Preface / RICKARDS, R.B. & CHAPMAN, A.J -- A critique of graptolite classification, and a revision of the suborders Diplograptina -- and Monograptina /RIGBY, J. -- A possible new pattern of cortical deposit in Tremadoc -- dendroid graptolites from chert nodules / URBANEK, A. & MIERZEJEWSKI, P. -- On the anisograptid affiliation of Dictyonemaflabelliforme (Eichwald, 1840) -- and its nomenclatural consequences /ERDTMANN, B.-D. -- LENZ, A.C. 8z JACKSON, D.E. Arenig and Llanvirn graptolite biostratigraphy, Canadian -- Cordillera -- Biostratigraphy of the Ordovician Nemagraptus gracilis Zone / FINNEY, S.C. & BERGSTROM, S.M. -- Biostratigraphic integration of Ordovician graptolite and conodont zones--a -- regional review / BERGSTR6M, S.M. -- Cluster analysis of isograptid individuals from Bullengarook, Victoria, -- Australia. / SCHLEIGER, N.W. -- Astogenetic development of some lower Ordovician graptolites from Norway / SPJELDNAES, N. -- Heterochrony, punctuated equilibrium and graptolite zonal boundaries / FINNEY, S.C. -- The Ordovician graptolite-bearing strata of Xiushui Drainage Basin, Jiangxi, -- southern China and their correlation -- MITCHELL, C.E. Morphometric studies of Climacograptus "(.Halt)" and'the phyloienetic -- significance of astogeny / Yu, J. & FANG, Y. -- Graptolite zones of upper Ordovician to middle Silurian age in a continuous section -- at Ziyang, Shaanxi, China / Fu, LI-PU -- Stratigraphic significance of Glyptograptus persculptus group graptolites in -- central Nevada, U.S.A / BERRY, W.B.N. -- The lower Silurian graptolites of Oued in Djerane. A study of populations at the -- Ordovician-Silurian boundary / LEGRAND, P. -- Graptolite zones in the Ordovician and Silurian of the Gorny -- Altai / OBUT, A.M. & SENNIKOV, N.V. -- Top Ordovician and lowest Silurian of Dob's Linn -- Huo, SHI-CHENG & SHU, DE-GAN. The Silurian graptolite-bearing strata in China / WILLIAMS, S.H. -- Silurian graptolites from North Greenland -- DENG, BAO. On the morphological characteristics of the spiralis group and the stratigraphic -- significance of the appearance of Cyrtograptus / BJERRESKOV, M. -- A mathematical study of the Cyrtograptus -- sakmaricus lineage with discussions of the evolutionary trends in this lineage / Huo, SHI-CHENG, FU, LI-PU & SHU, DE-GAN -- Families of Retiolitida and their phylogenetic relations / OBUT, A.M. & ZASLAVSKAYA, N.M. -- The mode of secretion of graptolite periderm, in normal and -- retiolite graptolites / BATES, D.E.B. & KIRK, N.H. -- PA~KEVIZIUS, J. Assemblages of Silurian graptolites from various facies of the East Baltic region -- Silurian graptolites from Serbia, Yugoslavia / MIHAJLOVld PAVLOVId, M. -- The monotypic 'population' accompanying the lectotype of Saetograptus varians -- Wood 1900 / PALMER, D.C. -- Modern pterobranchs: observations on their behaviour and tube building / DILLY, P.N. -- INDEX.
Weitere Ausg.:
ISBN 0-632-01071-1
Sprache:
Englisch
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