Alexander Weinmann
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View article: Taxonomy and palaeoecology of the Mesozoic family Duotaxidae Mikhalevich (Foraminifera)
Taxonomy and palaeoecology of the Mesozoic family Duotaxidae Mikhalevich (Foraminifera) Open
This paper addresses the long‐standing taxonomic issue of the supra‐species classification of Mesozoic taxa with an agglutinated wall originally included in the genus Tetrataxis , the type species of which, Tetrataxis conica , ranges into …
View article: Community guidelines to increase the reusability of marine microfossil assemblage data
Community guidelines to increase the reusability of marine microfossil assemblage data Open
Data on marine microfossil assemblage composition have multiple applications. Initially, they were primarily used for (chrono)stratigraphy and palaeoecology, but these data are now also widely used to study evolutionary and ecological proc…
View article: Ecological restructuring of North Tethyan marine vertebrate communities triggered by the end-Cretaceous extinction
Ecological restructuring of North Tethyan marine vertebrate communities triggered by the end-Cretaceous extinction Open
The ecological upheavals produced by the Cretaceous–Paleogene mass extinction event (K-Pg, −66 Ma) have been mostly studied at large scale with emphasis on clades’ diversity dynamics. How this event affected the structure of paleocommuniti…
View article: Deep-marine elasmobranchs from the Badenian (Langhian, Middle Miocene) of the Central Paratethys of Austria
Deep-marine elasmobranchs from the Badenian (Langhian, Middle Miocene) of the Central Paratethys of Austria Open
This study reports on a rare assemblage of deep-marine elasmobranchs from the middle Badenian (Langhian) of Austria, which has been recovered by extensive bulk sampling of sediment deposited in the Krems embayment. The applied multidiscipl…
View article: Invasive shallow-water foraminifera impacts local biodiversity mostly at densities above 20 %: the case of Corfu Island
Invasive shallow-water foraminifera impacts local biodiversity mostly at densities above 20 %: the case of Corfu Island Open
Corfu Island (Greece) is located in the northern Ionian Sea and exhibits unique and diverse marine coastal habitats suitable for high-diversity assemblages such as shallow-water foraminifera. The island also lies near the current range exp…
View article: Jullienella foetida Schlumberger, the largest shallow-water agglutinated foraminifer in modern oceans
Jullienella foetida Schlumberger, the largest shallow-water agglutinated foraminifer in modern oceans Open
<p><em>Jullienella foetida </em>is probably the largest agglutinated foraminifer in modern oceans and can reach a length of up to ~14 cm. Because of its large size, the species was initially considered to be a bryozoan, b…
View article: Assessing assemblages from foraminiferal propagule banks: A combined approach of culture experiments and eDNA metabarcoding
Assessing assemblages from foraminiferal propagule banks: A combined approach of culture experiments and eDNA metabarcoding Open
<p>Shallow-water banks of foraminiferal propagules (tiny juveniles <63 &#181;m) harbor a hidden assemblage composition that has altered our understanding of traditional distribution patterns. Propagules can be transported well…
View article: New observations on test architecture and construction of <i>Jullienella foetida</i> Schlumberger, 1890, the largest shallow-water agglutinated foraminifer in modern oceans
New observations on test architecture and construction of <i>Jullienella foetida</i> Schlumberger, 1890, the largest shallow-water agglutinated foraminifer in modern oceans Open
We present new observations on Jullienella foetida Schlumberger, 1890, a giant agglutinated foraminifer with a leaf- or fan-like test reaching a maximum dimension of 14 cm, that is common on some parts of the west African continental shelf…
View article: The propagule method as a tool to study assemblage dynamics in benthic foraminifera: An example with pH variations
The propagule method as a tool to study assemblage dynamics in benthic foraminifera: An example with pH variations Open
<p>Benthic foraminifera are important indicators for ecological studies. The assemblage composition of local communities can be used to analyze influences of environmental variables such as temperature, salinity, pH, and others. In r…
Effects of sampling site, season, and substrate on foraminiferal assemblages grown from propagule banks from lagoon sediments of Corfu Island (Greece, Ionian Sea) Open
Foraminiferal propagule banks occur in fine sediment fractions that contain small individuals of benthic foraminifera. These sediments include locally sourced juveniles and propagules, as well as allochthonous propagules that have disperse…
View article: Recent Invasion of the Symbiont-Bearing Foraminifera Pararotalia into the Eastern Mediterranean Facilitated by the Ongoing Warming Trend
Recent Invasion of the Symbiont-Bearing Foraminifera Pararotalia into the Eastern Mediterranean Facilitated by the Ongoing Warming Trend Open
The eastern Mediterranean is a hotspot of biological invasions. Numerous species of Indo-pacific origin have colonized the Mediterranean in recent times, including tropical symbiont-bearing foraminifera. Among these is the species Pararota…
View article: Experimental data on photophysiology and growth rates of Pararotalia calcariformata
Experimental data on photophysiology and growth rates of Pararotalia calcariformata Open
The eastern Mediterranean is a hotspot of biological invasions. Numerous species of Indo-pacific origin have colonized the Mediterranean in recent times, including tropical symbiont-bearing foraminifera. Among these is the species Pararota…