Ultrahigh-resolution imaging of biogenic phosphorus and molybdenum in palaeoproterozoic gunflint microfossils [PDF]
Scientific ReportsPhosphorus and molybdenum play important roles in the formation of microbial cell structures and specific enzymes crucial for metabolic processes. Nevertheless, questions remain about the preservation of these elements within ancient microfossils.
Kohei Sasaki +4 more
doaj +2 more sources
Recognition of Rare Microfossils Using Transfer Learning and Deep Residual Networks [PDF]
Biology, 2022 Various microfossils from the early Cambrian provide crucial clues for understanding the Cambrian explosion and the origin of animal phyla. However, specimens with important anatomical structures are extremely rare and the efficiency of retrieving such ...
Bin Wang +8 more
doaj +2 more sources
Mimicking early life-forms in the lab [PDF]
eLifeStudying the growth of bacteria without cell walls in an artificial environment can shed new light on the proliferation of primitive life-forms billions of years ago.
Maarten Lubbers, Dennis Claessen
doaj +2 more sources
THORIUM, URANIUM AND RARE EARTH MINERALIZATION IN ROCKS OF THE UGAKHAN GOLD DEPOSIT, BODAIBO ORE REGION [PDF]
Минералогия, 2021 The paper reports on the results of studies of ore-bearing rocks of the Ugakhan gold deposit (Bodaybo district): metasandstones, metasiltstones and carbonaceous shales.
E.V. Shepel +3 more
doaj +1 more source
Semantic segmentation of vertebrate microfossils from computed tomography data using a deep learning approach [PDF]
Journal of Micropalaeontology, 2021 Vertebrate microfossils have broad applications in evolutionary biology and stratigraphy research areas such as the evolution of hard tissues and stratigraphic correlation. Classification is one of the basic tasks of vertebrate microfossil studies.
Y. Hou +10 more
doaj +1 more source
Possible metazoan egg fossils from the Darriwilian (Middle Ordovician) of Baltoscandia [PDF]
Estonian Journal of Earth Sciences, 2021 The Baltoscandian lower Palaeozoic succession is well known for the abundance, diversity and excellent preservation of various groups of microfossils, such as acritarchs, chitinozoans, scolecodonts and conodonts.
Olle Hints, Jaak Nõlvak, Yan Liang
doaj +1 more source
On Topological Analysis of fs-LIMS Data. Implications for in Situ Planetary Mass Spectrometry
Frontiers in Artificial Intelligence, 2021 In this contribution, we present results of non-linear dimensionality reduction and classification of the fs laser ablation ionization mass spectrometry (LIMS) imaging dataset acquired from the Precambrian Gunflint chert (1.88 Ga) using a miniature time ...
Rustam A. Lukmanov +8 more
doaj +1 more source
Indigenous agglutinated foraminifera from the Eocene La Meseta Formation, Seymour Island, West Antarctica [PDF]
Polish Polar Research, 2019 Here are reported the first certainly indigenous agglutinated foraminifera known for the Eocene La Meseta Formation on Seymour Island, West Antarctica. The specimens were identified as Textularia sp. and occur in the upper portion of the unit, just below
Victor C.S. Badaró
doaj +1 more source
Life, 2021 Identifying microbial fossils in the rock record is a difficult task because they are often simple in morphology and can be mimicked by non-biological structures.
Andrew Gangidine +5 more
doaj +1 more source
Marcasite at the Permian‐Triassic Transition
Geophysical Monograph Series, Page 377-399., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva +7 more
wiley +2 more sources