Results 121 to 130 of about 342 (179)

Elemental Geochemical Characteristics of Shales from Wufeng-Longmaxi Formations in the Southern Margin of the Qinling Orogenic Belt, China: Implications for Depositional Controls on Organic Matter. [PDF]

ACS Omega
Xiao B, Guo D, Zhao Z, Xiong S, Feng M, Zhao Z, Li S.   +6 more
europepmc   +1 more source

Branched Setae or Attached Macroalgae: A Case Study of an Exceptionally Preserved Brachiopod from the Early Cambrian Chengjiang Lagerstätte. [PDF]

Biology (Basel)
Liang Y, Topper TP, Song B, Zhang C, Agbaje OBA, Holmer LE, Zhang Z.   +6 more
europepmc   +1 more source

Recurring marine phosphorus spikes during major palaeozoic mass extinctions and climate change. [PDF]

Nat Commun
Dodd MS, Li C, Zhang Z, Sadekov AY, Desrochers A, Hints O, Yan D, Yang X, George AD, Elrick M, White D, Qie W, Chen B, Merdith AS, Mills BJW.   +14 more
europepmc   +1 more source

Mechanisms of global climate change during the five major mass extinctions. [PDF]

Sci Rep
Kaiho K.
europepmc   +1 more source

The southwesternmost record of late Silurian (Pridolian) early land plants of Gondwana. [PDF]

Sci Rep
Drovandi JM, Conde OA, Lopez FE, Coturel EP, Alarcón Gómez CM, Arnol JA, Kaufmann C, Braeckman AR, Pedernera FA, Abarca U.   +9 more
europepmc   +1 more source

Silurian Climatic Zonation of Cryptospore, Trilete Spore and Plant Megafossils, with Emphasis on the Přídolí Epoch. [PDF]

Life (Basel)
Bek J, Steemans P, Frýda J, Žárský V.   +3 more
europepmc   +1 more source

Shale pore characteristics and their impact on the gas-bearing properties of the Longmaxi Formation in the Luzhou area. [PDF]

Sci Rep
Li J, Li H, Jiang W, Cai M, He J, Wang Q, Li D.   +6 more
europepmc   +1 more source

Report on Canadian graptolites

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Graptolite ontogeny and the size of the graptolite zooid

Geological Magazine, 1995
AbstractTwo methods of estimating the size of the graptolite zooid are described and discussed. It is possible to size a zooid by reference to cortical bandages or with reference to modem Rhabdopleura and its tubes. These two methods give very different results, with the first suggesting small zooids relative to thecal size and the second suggesting ...
Susan Rigby, Margaret Sudbury
openaire   +1 more source

Extinction of the graptolites

Geological Society, London, Special Publications, 1979
Summary Graptoloids became extinct in latest Early Devonian (Pragian) times, and dendroids in the late Carboniferous. There is insufficient information for the other six graptolite orders to suggest when they might have become extinct, so that in these cases it is impossible as yet to speculate how extinction occurred.
T. N. Koren’, R. B. Rickards
openaire   +1 more source