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Plate tectonics, cold adaptation and long-distance range expansion to remote archipelagos and the high Andes as drivers of a circumantarctic freshwater arthropod radiation.
Mol Phylogenet Evol
December 2024
SNSB-Zoologische Staatssammlung München, Münchhausenstraße 21, D-81247 Munich, Germany; GeoBio-Center, Ludwig-Maximilians-University, Richard-Wagner-Straße 10, D-80333 Munich, Germany.
Disjunct distributions, characterised by spatially separated populations of related species, offer insights into historical biogeographic patterns and evolutionary processes. This study investigates the evolutionary history of the diving beetle subfamily Lancetinae through a phylogenomic approach incorporating ultraconserved elements (UCEs) and heritage genetic markers. Our findings support an early Miocene origin for Lancetinae, with subsequent diversification influenced by historical vicariance events and long-distance dispersal.
View Article and Find Full Text PDFThe origin and evolution of shrews (Soricidae, Mammalia).
Proc Biol Sci
December 2024
Department of Zoology, University of Cambridge CB2 3EJ, UK.
Shrews are among the most speciose of mammalian clades, but their evolutionary history is poorly understood. Their fossil record is fragmentary and even the anatomy of living groups is not well documented. Here, we incorporate the oldest, most complete fossil shrew yet known into the first phylogenetic analysis of the group to include molecular, morphological and temporal data.
View Article and Find Full Text PDFAncient Hybridisation Fuelled Diversification in Acropora Corals.
Mol Ecol
December 2024
State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, China.
Introgression is the infiltration or flow of genes from one species to another through hybridisation followed by backcrossing. This may lead to incorrect phylogenetic reconstruction or divergence-time estimation. Acropora is a dominant genus of reef-building corals; however, whether this group has an introgression history before their diversification remains unclear, and previous divergence-time estimates of Acropora have not considered the impact of introgression.
View Article and Find Full Text PDFProvenance, environments, and tectonic signatures of Tanjong-Sandakan Formations, Northeast Sabah, Malaysia: Implications from sedimentology, palynology, and geochemistry.
Heliyon
December 2024
Department of Geological Engineering, Universitas Muhammadiyah Kalimantan Timur, 75243, Kalimantan Timur, Kota Samarinda, Indonesia.
Article Synopsis
- The study analyzes marginal marine deposits from the Tanjong and Sandakan formations in Northeast Sabah, focusing on sedimentology, trace and rare earth elements, hydrocarbon potential, and palynology to explore their environmental and geological history during the Early to Late Miocene.
- Four facies associations were identified in the Tanjong and three in the Sandakan formations, indicating a mix of terrestrial to shallow marine environments, with specific flora suggesting transition zones and varied redox conditions influenced by tectonic activity and sea-level changes.
- Findings show that sediment types differ between mudstones and sandstones, with mudstones reflecting active continental margins related to regional rifting, while sandstones suggest passive margins originating from older sedimentary processes
The Impact of Early Diagenesis on Biosignature Preservation in Sulfate Evaporites: Insights From Messinian (Late Miocene) Gypsum.
Geobiology
December 2024
Dipartimento di Scienze Della Terra, Università Degli Studi di Torino, Torino, Italy.
Due to their fast precipitation rate, sulfate evaporites represent excellent repositories of past life on Earth and potentially on other solid planets. Nevertheless, the preservation potential of biogenic remains can be compromised by extremely fast early diagenetic processes. The upper Miocene, gypsum-bearing sedimentary successions of the Mediterranean region, that formed ca.
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