ArticlePLoS biology2017
Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae.
Article in PLoS biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.
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70 citing papers in PubMed.
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- Breathing life into the boring billion: Direct constraints from 1.4 Ga fluid inclusions reveal a fair climate and oxygenated atmosphere.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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- Structural and evolutionary features of red algal UV sex chromosomes.Genome biology · 2025Article
- Structural colour in red seaweeds is more common and diverse than has been presumed.Journal of the Royal Society, Interface · 2025Review
- A diverse Palaeoproterozoic microbial ecosystem implies early eukaryogenesis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Dating the Origin and Spread of Plastids and Chromatophores.International journal of molecular sciences · 2025Article
- Settling aerodynamics is a driver of symmetry in deciduous tree leaves.Journal of the Royal Society, Interface · 2025Article
- Oxygen-binding proteins aid oxygen diffusion to enhance fitness of a yeast model of multicellularity.PLoS biology · 2025Article
- Six new bacterial species isolated from the phycosphere of marine macroalgae: a joint analysis based on taxonomy and polysaccharide utilization loci.Frontiers in microbiology · 2025Article
- A New Model and Dating for the Evolution of Complex Plastids of Red Alga Origin.Genome biology and evolution · 2024Article
- The eukaryome of modern microbialites reveals distinct colonization across aquatic ecosystems.NPJ biofilms and microbiomes · 2024Article
- Proterozoic microfossils continue to provide new insights into the rise of complex eukaryotic life.Royal Society open science · 2024Review
- Dating Ammonia-Oxidizing Bacteria with Abundant Eukaryotic Fossils.Molecular biology and evolution · 2024Article
10 more citing papers are in PubMed but not listed here.
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4 authors.
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Abstract
The ~1.6 Ga Tirohan Dolomite of the Lower Vindhyan in central India contains phosphatized stromatolitic microbialites. We report from there uniquely well-preserved fossils interpreted as probable crown-group rhodophytes (red algae). The filamentous form Rafatazmia chitrakootensis n. gen, n. sp. has uniserial rows of large cells and grows through diffusely distributed septation. Each cell has a centrally suspended, conspicuous rhomboidal disk interpreted as a pyrenoid. The septa between the cells have central structures that may represent pit connections and pit plugs. Another filamentous form, Denaricion mendax n. gen., n. sp., has coin-like cells reminiscent of those in large sulfur-oxidizing bacteria but much more recalcitrant than the liquid-vacuole-filled cells of the latter. There are also resemblances with oscillatoriacean cyanobacteria, although cell volumes in the latter are much smaller. The wider affinities of Denaricion are uncertain. Ramathallus lobatus n. gen., n. sp. is a lobate sessile alga with pseudoparenchymatous thallus, "cell fountains," and apical growth, suggesting florideophycean affinity. If these inferences are correct, Rafatazmia and Ramathallus represent crown-group multicellular rhodophytes, antedating the oldest previously accepted red alga in the fossil record by about 400 million years.
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