Results 131 to 140 of about 460 (165)

Morphological Evolution of Eurasian Bryozoans during Famennian–Tournaisian

Paleontological Journal, 2021
The main trends in the morphological evolution of bryozoans at the Devonian-Carboniferous boundary were established when studying the Late Devonian–Early Mississippian bryozoans of Eurasia. The diversity of vertical colonies increased from Early Famennian to Late Tournaisian. An increase in their strength occurred by growth of the exozonal skeleton due
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Carbon isotope geochemistry of the Frasnian–Famennian transition

Palaeogeography, Palaeoclimatology, Palaeoecology, 2002
Abstract Carbon isotope records for inorganic and total organic carbon (TOC) as well as for individual organic biomarkers show two positive excursions in the Late Frasnian with comparable shape and amplitude in δ13C. The positive shifts in δ13C can be correlated with the deposition of the Kellwasser horizons.
Joachimski, MM, Pancost, RD, Freeman, KH, Ostertag-Henning, C, Buggisch, W   +4 more
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Frasnian–Famennian biotic crisis: undervalued tectonic control?

Palaeogeography, Palaeoclimatology, Palaeoecology, 1998
The prime cause of the Late Devonian Kellwasser crisis, culminating in a mass extinction event near the Frasnian–Famennian (F–F) boundary, remains conjectural. Nevertheless, rapid sea-level fluctuations of uncertain origin during tectono-eustatic highstand, paired with repeated oceanic anoxia and climatic changes, are usually thought at present to be ...
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A Possible Bacterial Origin for Famennian Micrites

1977
Since Drew (1911), the role of bacterias for preCipitation of calciwn carbonates (marine) has been recognized. Their biochemical effects on orgaDic sludge have been tentatively demonstrated by Trichet (1967–1972) and other workers. It should be stressed that blue-green algae playa passive role, as providers of organic substrate.
A. F. Maurin, D. Noël
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Maleimides across the Frasnian/Famennian boundary

Analysis of bound maleimides across the Late Devonian Frasnian/Famennian boundary from a core in the Illinois Basin, North America.
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Famennian, adj.

2023
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Upper Devonian (Famennian) on Menorca

Neues Jahrbuch für Geologie und Paläontologie - Monatshefte, 1990
Klaus-Dieter Meyer, Dieter Stoppel
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Late and latest Famennian conodonts at the Malpasso section.

2017
Conodont biostratigraphic and taxonomic analysis of the Malpasso section were presented by Perri & Spalletta (1991, 1998). The abundant ammonoid fauna was studied by Korn & House (1997) and Korn (1998). In Spalletta & Perri (2001) the section was proposed as possible candidate for the subdivision of the Famennian.
Spalletta, C., Perri, M. C., Pondrelli, M.   +2 more
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Famennian conodonts from the Hongguleleng Formation at the Bulongguoer stratotype section, western Junggar, Northwest China

Palaeoworld, 2021
exaly  

Famennian microbial reef facies, Napier and Oscar Ranges, Canning Basin, western Australia

Sedimentology, 2003
Dawn Y Sumner
exaly