Results 71 to 80 of about 46,008 (233)
Terra Nova, Volume 38, Issue 1, Page 9-18, February 2026.ABSTRACT The Carboniferous‐Permian Tarija basin of southern Bolivia evolved under major tectonic and climatic influence. The timing of transition from glacially influenced to arid conditions, after the Gondwanide tectonic event, has been based mainly on palynological correlations.
Felipe R. Ferroni +4 more
wiley +1 more source
Interstipe webbing in the Silurian graptolite Cyrtograptus murchisoni and its palaeobiological significance. [PDF]
, 1995 Although it has long been recognized that the Graptoloidea constituted a diverse group of planktic organisms, the precise hydrodynamics of the various colony morphotypes has been a source of debate.
Underwood, Charlie J.
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FEBS Letters, Volume 600, Issue 2, Page 164-187, January 2026.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
Boletín Geológico, 1994 During a palynological investigation of Paleozoic series in the Colombian Cordillera Oriental Silurian-indicating fossils were found in Colombia. In this paper we describe four palynomorphs which were significant for the Silurian of the Quetame Massif.
Klaus F. Prossl, Joachim R. Grosser
doaj +1 more source
Lower Wenlock black shales in the northern Holy Cross Mountains, Poland: Sedimentary and geochemical controls on the Ireviken Event in a deep marine setting [PDF]
, 2016 The stratigraphic variability and geochemistry of Llandovery/Wenlock (L/W) Series boundary sediments in Poland reveals that hemipelagic sedimentation under an anoxic/euxinic water column was interrupted by low density bottom currents or detached diluted ...
Bond, David P. G. +3 more
core +1 more source
Geological Journal, Volume 61, Issue 1, Page 127-145, January 2026.Using DZmix and DZstats models, we quantified the contributions of potential sources of the Lanzhou basin. Our findings indicate that the Cenozoic cooling and denudation signals primarily originated from Qilian and West Qinling, which were the main sediment sources.
Hang Liu +3 more
wiley +1 more source
Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania:a standard for southern Scandinavia [PDF]
, 2014 The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by
Ahlberg, Per +3 more
core +2 more sources
Journal of Quaternary Science, Volume 41, Issue 1, Page 4-24, January 2026.ABSTRACT The sediment signature of glacial erosion products exported from Hudson Strait to the Labrador Sea during Hudson Strait Heinrich (HS‐H) events is evaluated using four distinct proxies: paired δ18Ο and δ13C data on the carbonate fraction, εNd and U–Pb isotopes in the silicate fraction, the mineral composition of the <2 mm bulk sediment fraction,
John T. Andrews +3 more
wiley +1 more source
Palaeoecology of corals and stromatoporoids in a late Silurian biostrome in Estonia [PDF]
, 2014 A middle Ludlow biostrome at Katri, western Estonia, the richest accumulation of corals and stromatoporoids in Estonia, is partly exposed in a coastal section ca. 1 m high, 150 m long. The fully marine biostrome consists of 5 layers of skeletal carbonate,
Kershaw, S, Motus, M-A
core +6 more sources
High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event [PDF]
Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Deynoux, M. +2 more
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