Paläontologie, Geobiologie: Recent submissions
Anzeige der Dokumente 61-85 von 380
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Microbial biosignatures in ancient deep‐sea hydrothermal sulfides
; ; ; (Geobiology, 2022-12-16)
Deep‐sea hydrothermal systems provide ideal conditions for prebiotic reactions and ancient metabolic pathways and, therefore, might have played a pivotal role in the emergence of life. To understand this role better, it ... -
Palaeoecological analysis of maximum flooding zones from the Tithonian (Upper Jurassic) of the Kachchh Basin, western India
(Facies, 2020-12-24)The siliciclastic Jhuran Formation of the Kachchh Basin, a rift basin bordering the Malagasy Seaway, documents the filling of the basin during the late syn-rift stage. The marine, more than 700-m-thick Tithonian part of ... -
Microbial-, fusulinid limestones with large gastropods and calcareous algae: an unusual facies from the Early Permian Khao Khad Formation of Central Thailand
; ; ; (Facies, 2020-07-14)
The Early Permian (Kungurian) Khao Khad Formation of Central Thailand consists mostly of carbonates deposited on the western margin of the Indochina Terrane. This formation has yielded unusual microbial-fusulinid limestones ... -
Depth-distribution of lake benthic diatom assemblages in relation to light availability and substrate: implications for paleolimnological studies
; ; ; (Journal of Paleolimnology, 2020-06-25)
We analyzed the depth distributions of benthic diatoms in two adjacent, but hydrologically distinct subalpine lakes (Lakes Soiernseen, S-Germany). Lake Unterer Soiernsee is affected by marked water-level fluctuations and ... -
Genetic and morphologic determination of diatom community composition in surface sediments from glacial and thermokarst lakes in the Siberian Arctic
(Journal of Paleolimnology, 2020-05-30)Lakes cover large parts of the climatically sensitive Arctic landscape and respond rapidly to environmental change. Arctic lakes have different origins and include the predominant thermokarst lakes, which are small, young ... -
Do earthworms (D. veneta) influence plant-available water in technogenic soil-like substrate from bricks and compost?
(Journal of Soils and Sediments, 2020-09-15)Purpose: Topsoil and peat are often taken from intact rural ecosystems to supply the urban demand for fertile soils and soil-like substrates. One way of reducing this exploitation is to recycle suitable urban ... -
Menatanthus mosbruggeri gen. nov. et sp. nov. – A flower with in situ pollen tetrads from the Paleocene maar lake of Menat (Puy-de-Dôme, France)
; ; ; (Palaeobiodiversity and Palaeoenvironments, 2020-11-16)
The Paleocene Fossil-Lagerstätte Menat in France is well known for its wealth of outstandingly well preserved fossil insects and plants. Despite being known for more than a century, the palaeoflora, which is regarded as ... -
The Hushoot Shiveetiin gol section (Baruunhuurai Terrane, Mongolia): sedimentology and facies from a Late Devonian island arc setting
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A Late Devonian to (?)Early Mississippian section at Hushoot Shiveetiin gol in the Baruunhuurai Terrane of the Central Asian Orogenic Belt (CAOB) exposes large parts of cyclic Famennian shallow-water siliciclastic shelf ... -
Wildfire during deposition of the “Illinger Flözzone” (Heusweiler-Formation, “Stephanian B”, Kasimovian–Ghzelian) in the Saar-Nahe Basin (SW-Germany)
; (Palaeobiodiversity and Palaeoenvironments, 2020-09-24)
Wildfires occurred more or less regularly in many Pennsylvanian ecosystems, not only in seasonally dry regions but also in the ever wet tropics. One of the reasons for this was probably the relatively high atmospheric ... -
First record of the Early Carboniferous ammonoid genus Goniatites from the Greater Karatau (Kazakhstan palaeocontinent)
; ; ; ; ; (Palaeobiodiversity and Palaeoenvironments, 2020-07-24)
The Late Viséan ammonoid genus Goniatites had a near-global distribution within the tropical seas but was rarely reported from Central Asia. New investigations of the Early Carboniferous sedimentary succession in the Greater ... -
Devonian-Carboniferous boundary sections in Iran
; ; (Palaeobiodiversity and Palaeoenvironments, 2020-09-30)
Many sections are known from Iran which exhibit sediments across the Devonian-Carboniferous (D-C) boundary. In contrast to the majority of published D-C sections worldwide from pelagic/hemipelagic environments, successions ... -
The recolonisation of volcanically disturbed Eocene habitats of Central Europe: the maar lakes of Messel and Offenthal (SW Germany) compared
(Palaeobiodiversity and Palaeoenvironments, 2020-07-02)To reconstruct the palaeoenvironment and changes within the vegetation, 68 core samples were analysed palynologically from the lacustrine filling of the Eocene maar lake of Offenthal (Hesse, SW Germany). The lacustrine ... -
Diversity patterns and palaeoecology of benthic communities of the Kanosh Formation (Pogonip Group, Utah, western USA)
; (Palaeobiodiversity and Palaeoenvironments, 2020-06-28)
The Dapingian to Darriwilian Kanosh Formation is one of the most fossiliferous units of the Pogonip Group (Great Basin, western US). It records a critical phase of the so-called Great Ordovician Biodiversification Event ... -
Early Famennian bryozoan fauna from the Baqer-abad section, northeast Isfahan, central Iran
; ; (Palaeobiodiversity and Palaeoenvironments, 2020-04-03)
A bryozoan fauna from the Upper Devonian (lower Famennian) of the Bahram Formation of the Baqer-abad section in central Iran contains four species: three trepostomes and one rhabdomesine cryptostome. Two trepostome species ... -
100 years of Palaeobiodiversity and Palaeoenvironments
(Palaeobiodiversity and Palaeoenvironments, 2020-03-03)
100 years of evolution of the journals’ scientific focus from Senckenbergiana to Palaeobiodiversity and Palaeoenvironments are described. -
Transformation of dissolved organic matter by two Indo‐Pacific sponges
; ; ; ; ; (Limnology and Oceanography, 2022-09-12)
Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, ... -
Presence of a resident species aids invader evolution
; ; ; (Limnology and Oceanography, 2022-08-09)
Interactions between phytoplankton species shape their physiological and evolutionary responses. Yet, studies addressing the evolutionary responses of phytoplankton in changing environments often lack an explicit element ... -
Fluorescent colour patterns in the basal pectinid Pleuronectites from the Middle Triassic of Central Europe: origin, fate and taxonomic implications of fluorescence
(Palaeontology, 2022-10-27)
UV light‐induced fluorescence is widely used as a key to reveal residual shell colour patterns of Neogene and Palaeogene molluscs. However, only few examples of fluorescent colour patterns are known from Mesozoic marine ... -
High Precision Femtosecond Laser Ablation ICP‐MS Measurement of Benthic Foraminiferal Mn‐Incorporation for Paleoenvironmental Reconstruction: A Case Study From the Plio‐Pleistocene Caribbean Sea
; ; ; ; ; ; ; ; ; (Geochemistry, Geophysics, Geosystems, 2022-10-04)
Closure of the Central American Seaway (CAS) and hydrology of the Caribbean Sea triggered Northern Hemisphere Glaciation and played an important role in the Pliocene to modern‐day climate re‐establishing the deep and surface ... -
Nutrient and Silicon Isotope Dynamics in the Laptev Sea and Implications for Nutrient Availability in the Transpolar Drift
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Realistic prediction of the near‐future response of Arctic Ocean primary productivity to ongoing warming and sea ice loss requires a mechanistic understanding of the processes controlling nutrient bioavailability. To ... -
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion
; ; ; ; (Limnology and Oceanography, 2022-09-10)
Physiological sensitivity of cold‐water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead ... -
Distribution, drivers and population structure of the invasive alien snail Tarebia granifera in the Luvuvhu system, South Africa
;; ; ; ; ; (River Research and Applications, 2022-02-03)
Invasive alien species continue to spread and proliferate in waterways worldwide, but environmental drivers of invasion dynamics lack assessment. Knowledge gaps are pervasive in the Global South, where the frequent heavy ... -
Reversals in Temperature‐Precipitation Correlations in the Northern Hemisphere Extratropics During the Holocene
; ; ; ; ; ; ; (Geophysical Research Letters, 2022-11-11)
Future precipitation levels remain uncertain because climate models have struggled to reproduce observed variations in temperature‐precipitation correlations. Our analyses of Holocene proxy‐based temperature‐precipitation ... -
Testing the use of the silica deposition fluorescent probe PDMPO to estimate in situ growth rates of diatoms
; (Limnology and Oceanography: Methods, 2022-08-12)
The fluorophore [2‐(4‐pyridyl)‐5{[4‐dimethylaminoethyl‐aminocarbamoyl‐methoxy]phenyl}oxazole], in short PDMPO, is incorporated in newly polymerized silica in diatom frustules and thereby provides a tool to estimate Si ... -
On the trail of iron uptake in ancestral Cyanobacteria on early Earth
; ;; ; ; ; (Geobiology, 2022-07-30)
Cyanobacteria oxygenated Earth's atmosphere ~2.4 billion years ago, during the Great Oxygenation Event (GOE), through oxygenic photosynthesis. Their high iron requirement was presumably met by high levels of Fe(II) in the ...
