Early fungi from the Proterozoic era in Arctic Canada

@article{Loron2019EarlyFF,
  title={Early fungi from the Proterozoic era in Arctic Canada},
  author={Corentin C. Loron and Camille François and R H Rainbird and Elizabeth C Turner and Stephan Borensztajn and Emmanuelle J. Javaux},
  journal={Nature},
  year={2019},
  volume={570},
  pages={232-235}
}
Fungi are crucial components of modern ecosystems. They may have had an important role in the colonization of land by eukaryotes, and in the appearance and success of land plants and metazoans1–3. Nevertheless, fossils that can unambiguously be identified as fungi are absent from the fossil record until the middle of the Palaeozoic era4,5. Here we show, using morphological, ultrastructural and spectroscopic analyses, that multicellular organic-walled microfossils preserved in shale of the… Expand
Shale-hosted biota from the Dismal Lakes Group in Arctic Canada supports an early Mesoproterozoic diversification of eukaryotes
Abstract. The Mesoproterozoic is an important era for the development of eukaryotic organisms in oceans. The earliest unambiguous eukaryotic microfossils are reported in late Paleoproterozoic shalesExpand
Cryptic terrestrial fungus-like fossils of the early Ediacaran Period
The colonization of land by fungi had a significant impact on the terrestrial ecosystem and biogeochemical cycles on Earth surface systems. Although fungi may have diverged ~1500–900 million yearsExpand
Molecular identification of fungi microfossils in a Neoproterozoic shale rock
TLDR
Fungi fossils in a 810 to 715 million year old dolomitic shale from the Mbuji-Mayi Supergroup, Democratic Republic of Congo are identified as remnants of fungal networks and represent the oldest, molecularly identified remains of Fungi. Expand
Early Eukaryotes in the Lakhanda Biota (Mesoproterozoic, Southeastern Siberia)-Morphological and Geochemical Evidence.
TLDR
Fossils found in the Lakhanda Formation share remarkable similarities with Ourasphaira giraldae, a possible higher fungi species known from the Meso- to Neoproterozoic of Arctic Canada and can confidently be assigned to eukaryotes because of the size and high morphological complexity. Expand
A one-billion-year-old multicellular chlorophyte
TLDR
Filamentous macrofossils from the one-billion-year-old Nanfen Formation of northern China are interpreted as a new species of early multicellular green algae, suggesting that chlorophytes acquired macroscopic size,Multicellularity and cellular differentiation nearly a billion years ago, much earlier than previously thought. Expand
Organically-preserved multicellular eukaryote from the early Ediacaran Nyborg Formation, Arctic Norway
TLDR
Unexpected organically-preserved fossils from mudrocks are described, that provide support for the presence of organisms with differentiated cells (potentially an epithelial layer) in the late Neoproterozoic. Expand
Non-pollen palynomorphs in deep time: unravelling the evolution of early eukaryotes
Abstract Most of the Precambrian (>538 Ma) fossil record, which includes the time before the onset of macroscopic multicellular life, consists of minute organically preserved remains of soft-bodiedExpand
A diverse organic-walled microfossil assemblage from the Mesoproterozoic Xiamaling Formation, North China
Abstract The mid-Proterozoic (ca. 1.85–0.85 Ga) might have been environmentally “boring”, but was a crucial interval of time for the early establishment of eukaryotic life on Earth. TheExpand
Possible poriferan body fossils in early Neoproterozoic microbial reefs
TLDR
Petrographically identical vermiform microstructure from approximately 890-million-year-old reefs is presented, which would provide the first physical evidence that animals emerged before the Neoproterozoic oxygenation event and survived through the glacial episodes of the Cryogenian period. Expand
A molecular timescale for eukaryote evolution with implications for the origin of red algal-derived plastids
TLDR
This period in the Meso- and Neoproterozoic Eras set the stage for the later expansion to dominance of red algal-derived primary production in the contemporary oceans, which profoundly altered the global geochemical and ecological conditions of the Earth. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 66 REFERENCES
Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis
Although the geological record indicates that eukaryotes evolved by 1.9–1.4 Ga, their early evolution is poorly resolved taxonomically and chronologically. The fossil red alga Bangiomorpha pubescensExpand
Micropaleontology of the lower Mesoproterozoic Roper Group, Australia, and implications for early eukaryotic evolution
TLDR
Roper fossils provide direct or inferential evidence for many basic features of eukaryotic biology, including a dynamic cytoskeleton and membrane system that enabled cells to change shape, life cycles that include resting cysts coated by decay-resistant biopolymers, reproduction by budding and binary division, osmotrophy, and simple multicellularity. Expand
Probable Proterozoic fungi
Abstract A large, morphologically heterogeneous population of acanthomorphic acritarchs from the early Neoproterozoic Wynniatt Formation, Victoria Island, northwestern Canada, is ascribed to twoExpand
Fungus-like mycelial fossils in 2.4-billion-year-old vesicular basalt
Fungi have recently been found to comprise a significant part of the deep biosphere in oceanic sediments and crustal rocks. Fossils occupying fractures and pores in Phanerozoic volcanics indicateExpand
Constraining the timing of basal metazoan radiation using molecular biomarkers and U-Pb isotope dating
Abundant and well-preserved molecular biomarkers are prevalent in sediments and oils of Neoproterozoic-Cambrian age from the Huqf Supergroup, South Oman Salt Basin. Amongst the diverse compoundExpand
New record of organic-walled, morphologically distinct microfossils from the late Paleoproterozoic Changcheng Group in the Yanshan Range, North China
Abstract Eukaryotic life has likely existed since the late Paleoproterozoic, yet little is known about its early diversity and phylogenetic relationships. Organic-walled microfossils (OWMs) withExpand
Estimating the timing of early eukaryotic diversification with multigene molecular clocks
TLDR
Taxon-rich multigene data combined with diverse fossils and a relaxed molecular clock framework are used to estimate the timing of the last common ancestor of extant eukaryotes and the divergence of major clades, suggesting that long stems preceded diversification in the major eUKaryotic lineages. Expand
Putative Cryogenian ciliates from Mongolia
TLDR
Eukaryotes forming recalcitrant organic or mineral-rich tests before 635 Ma may have increased export and burial fraction of organic carbon, driving an increase in atmospheric oxygen and the subsequent radiation of metazoans. Expand
Microfossils from the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa
Abstract The well-preserved Meso-Neoproterozoic shallow marine succession of the Atar/El Mreiti Group, in the Taoudeni Basin, Mauritania, offers a unique opportunity to investigate theExpand
Possible early foraminiferans in post-Sturtian (716−635 Ma) cap carbonates
Foraminifera are an ecologically important group of modern heterotrophic amoeboid eukaryotes whose naked and testate ancestors are thought to have evolved ∼1 Ga ago. However, the single-chamberedExpand
...
1
2
3
4
5
...