Browsing Paläontologie, Geobiologie by Issue Date
Now showing items 1-20 of 205
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Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants
(Palaeontology, 2021-01-31)Abstract Sporopollenin is a highly resistant biopolymer that forms the outer wall of pollen and spores (sporomorphs). Recent research into sporopollenin chemistry has opened up a range of new avenues for palynological ... -
Comparing surface digitization techniques in palaeontology using visual perceptual metrics and distance computations between 3D meshes
(Palaeontology, 2021-01-17)Abstract The use of surface digitization techniques and methods in palaeontology has increased in the last two decades, mainly due to recent improvements in devices and software. However, many digitization efforts are ... -
Brackish water algal reefs – facies analysis as a tool to identify palaeoenvironmental variations in Miocene deposits (Mainz‐Weisenau, Germany)
(Geological Journal, 2021-01-04)Brackish‐water carbonates are far less studied than their marine or limnic counterparts. However, their association with few, specialized species enables the documentation of fine‐scale changes in the depositional environment. ... -
Revisiting global trends in freshwater insect biodiversity: A reply
; ; ; (Wiley Interdisciplinary Reviews: Water, 2020-12-31)
Abstract Jähnig et al. make some useful points regarding the conclusions that can be drawn from our meta‐analysis; however, some issues require clarification. First, we never suggested that there was a globally increasing ... -
Countergradient variation concealed adaptive responses to temperature increase in Daphnia from heated lakes
; ; ; ; (Limnology and Oceanography, 2020-12-21)
Abstract To test the general assumption that global warming will induce body size reduction in aquatic organisms, we used a system of lakes continually heated for six decades by warm water discharge from power plants. Their ... -
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios
; ; ; ; (Limnology and Oceanography, 2020-12-17)
Abstract In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face ... -
Taxonomical diversity and palaeobiogeographical affinity of belemnites from the Pliensbachian–Toarcian GSSP (Lusitanian Basin, Portugal)
(Papers in Palaeontology, 2020-11-30)Abstract High‐resolution analysis of the late Pliensbachian – early Toarcian belemnite assemblages from the Peniche section (Lusitanian Basin) has enabled, for the first time, recognition of eight taxa of the suborder ... -
Evaluating the role of coastal hypoxia on the transient expansion of microencruster intervals during the early Aptian
; ; ; ; ;; ; (Lethaia, 2020-11-26)
Worldwide, a growing number of modern coastal marine ecosystems are increasingly exposed to suboxic‐ or even anoxic conditions. Low seawater oxygen levels trigger significant ecosystem changes and may result in mass mortality ... -
The new 14C chronology for the Palaeolithic site of La Ferrassie, France: the disappearance of Neanderthals and the arrival of Homo sapiens in France
; ; ; ; ; ; ; ; ; ; ; ; (Journal of Quaternary Science, 2020-08-24)
Abstract The grand abri at La Ferrassie (France) has been a key site for Palaeolithic research since the early part of the 20th century. It became the eponymous site for one variant of Middle Palaeolithic stone tools, and ... -
Quantitative critique of leaf‐based paleo‐CO2 proxies: Consequences for their reliability and applicability
; ; ; (Geological Journal, 2020-03-18)
A variety of proxies have been developed to reconstruct paleo‐CO2 from fossil leaves. These proxies rely on some combination of stomatal morphology, leaf δ13C, and leaf gas exchange. A common conceptual framework for ... -
A small podocnemidoid (Pleurodira, Pelomedusoides) from the Late Cretaceous of Brazil, and the innervation and carotid circulation of side‐necked turtles
; ; ; ; (Papers in Palaeontology, 2020-02-12)
Abstract Pleurodires are less diverse than cryptodires, together forming the two major lineages of crown turtles. Their fossil record, however, is rich. A particularly large number of fossil pleurodires, many belonging to ... -
Changes in food characteristics reveal indirect effects of lake browning on zooplankton performance
; ; ; ; (Limnology and Oceanography, 2019-11-12)
Abstract Browning caused by colored dissolved organic matter is predicted to have large effects on aquatic ecosystems. However, there is limited experimental evidence about direct and indirect effects of browning on ... -
Turritelline mass accumulations from the Lower Miocene of southern Germany: implications for tidal currents and nutrient transport within the North Alpine Foreland Basin
; ; ; ; (Lethaia, 2019-09-30)
The mass occurrence of turritelline gastropod shells from the Lower Miocene of southern Germany allows for detailed studies of their palaeoecology, transport mechanisms, preservation potentials and the reconstruction of ... -
A fossil species of the enigmatic early polypod fern genus Cystodium (Cystodiaceae) in Cretaceous amber from Myanmar.
(Scientific reports, 2017-11-06)The monospecific fern genus Cystodium (Cystodiaceae; Polypodiales) occurs exclusively in the tropical forests of the Malay Archipelago, the Admiralty Islands, the Louisiade Archipelago, and the Solomon Islands. Divergence ... -
Problems related to the taxonomic placement of incompletely preserved amber fossils: transfer of the Paleogene liverwort Cylindrocolea dimorpha (Cephaloziellaceae) to the extant Odontoschisma sect. Iwatsukia (Cephaloziaceae)
(Fossil Record, 2017)A revision of the Baltic and Bitterfeld amber fossils assigned to Cylindrocolea dimorpha (Cephaloziellaceae) has yielded evidence of the presence of multicellular, bifid underleaves, which have not previously been reported ... -
The Holo-Transcriptome of a Calcified Early Branching Metazoan
(Frontiers in Marine Science, 2017)djackso@uni-goettingen.de Specialty section: This article was submitted to Aquatic Microbiology, a section of the journal Frontiers in Marine Science Received: 31 October 2016 Accepted: 10 March 2017 Published: 28 ... -
A Burmese amber fossil of Radula (Porellales, Jungermanniopsida) provides insights into the Cretaceous evolution of epiphytic lineages of leafy liverworts
(Fossil Record, 2017)DNA-based divergence time estimates suggested major changes in the composition of epiphyte lineages of liverworts during the Cretaceous; however, evidence from the fossil record is scarce. We present the first Cretaceous ... -
Frutexites-like structures formed by iron oxidizing biofilms in the continental subsurface (Äspö Hard Rock Laboratory, Sweden)
; ; ; ; (PLOS ONE, 2017)
Stromatolitic iron-rich structures have been reported from many ancient environments and are often described as Frutexites, a cryptic microfossil. Although microbial formation of such structures is likely, a clear relation ... -
An Antarctic molluscan biomineralisation tool-kit
(Scientific Reports, 2016)The Antarctic clam Laternula elliptica lives almost permanently below 0 °C and therefore is a valuable and tractable model to study the mechanisms of biomineralisation in cold water. The present study employed a ... -
Ecophenotypic Variation and Developmental Instability in the Late Cretaceous Echinoid Micraster brevis (Irregularia; Spatangoida).
(PloS one, 2016)The Late Cretaceous echinoid genus Micraster (irregular echinoids, Spatangoida) is one of the most famous examples of a continuous evolutionary lineage in invertebrate palaeontology. The influence of the environment on the ...