Results 151 to 160 of about 1,858 (206)

Marine microfossils: Tiny archives of ocean changes through deep time. [PDF]

AIMS Microbiol
Sremac J, Bošnjak M, Firi KF, Šimičević A, Aščić Š.   +4 more
europepmc   +1 more source

The Cabrières Biota (France) provides insights into Ordovician polar ecosystems. [PDF]

Nat Ecol Evol
Saleh F, Lustri L, Gueriau P, Potin GJ, Pérez-Peris F, Laibl L, Jamart V, Vite A, Antcliffe JB, Daley AC, Nohejlová M, Dupichaud C, Schöder S, Bérard E, Lynch S, Drage HB, Vaucher R, Vidal M, Monceret E, Monceret S, Lefebvre B.   +20 more
europepmc   +1 more source

Influence of quartz types on mechanical parameters in the early silurian Longmaxi shale, Sichuan Basin. [PDF]

Sci Rep
Zhang Q, Liang F, Zhao Q, Liu W, Kong W, Gao W, Zhang X, Cai G, Qu T, Qiu Z.   +9 more
europepmc   +1 more source

The rise of lichens during the colonization of terrestrial environments. [PDF]

Sci Adv
Becker-Kerber B, Brocks JJ, Archilha NL, Rodella CB, Petkov V, deAzevedo ER, Pimentel T, Garcia R, Petts D, Czas J, Ardakani OH, Chappaz A, Albuquerque Â, Ortega-Hernández J, Lerosey-Aubril R, Kipp MA, Johnson B, Thoury M, Oliveira CMA, Pimentel HHLSM, Freitas RO, Vicentin FC, Borges LGF, Almer J, Park JS, Polo CC, Kerber G, Del Mouro L, Figueiredo M, Prado GMEM, Ahmed S, Basei MAS.   +31 more
europepmc   +1 more source

Report on Canadian graptolites

openaire   +2 more sources

Graptolites in British Stratigraphy [PDF]

Geological Magazine, 2009
Abstract697 taxa of planktonic graptolites are recorded, and their stratigraphical ranges are given, through 60 biozones and subzones in the Ordovician and Silurian strata of England, Wales and Scotland, in the first such stratigraphical compilation for Great Britain since the synthesis of Elles & Wood (1901–1918).
Mark Williams, D K Loydell, R B Rickards
exaly   +5 more sources

The Organic Petrology of Graptolites and Maturity Assessment of the Wufeng–Longmaxi Formations From Chongqing, China: Insights From Reflectance Cross-Plot Analysis

International Journal of Coal Geology, 2017
The Wufeng–Longmaxi Formations (Ordovician-Silurian) contain abundant graptolite-bearing shales, which have proven to be one of the most successful shale gas exploration targets in China and can provide an opportunity to study the organic petrology of ...
Qingyong Luo, Jingyue Hao, Ningning Zhong   +2 more
exaly   +3 more sources

The Use of Computational Fluid Dynamics in Reconstructing the Hydrodynamic Properties of Graptolites

Gff, 2006
Graptolites are some of the most commonly preserved Silurian planktonic organisms. The interpretation of graptolite functional morphology is rendered problematic by their lack of close modern analogues or homologues. Physical modelling of graptolites has
Gavin Tabor, Susan Rigby
exaly   +2 more sources

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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