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Home / Palaeoclimate / The Rise of Oxygen and the Global Carbon Cycle

Focused on Palaeoclimate
Tree-Ring Research (Dendrochronology) in General
The Pros and Cons of Pre-Neogene Growth Rings
Leaf Size and Shape and the Reconstruction of Past Climates
Stomatal Density
! Wildfire and Present Day Fire Ecology@
! Fungal Wood Decay: Evidence from the Fossil Record@
! Cuticles@

The Rise of Oxygen and the Global Carbon Cycle

! J.F. Allen and W.F.J. Vermaas (2010): Evolution of Photosynthesis. PDF file, In: Encyclopedia of Life Sciences (ELS), John Wiley & Sons.

American Museum of Natural History, Learning Resources: The Rise of Oxygen. This website is part of Science Bulletins, an innovative online and exhibition program that offers the public a window into the excitement of scientific discovery. See also:
Search results: "oxygen".

K.L. Bacon and G.T. Swindles (2016): Could a potential Anthropocene mass extinction define a new geological period? In PDF, The Anthropocene Review, 3: 208–217.

K.L. Bacon et al. (2016): Can atmospheric composition influence plant fossil preservation potential via changes in leaf mass per area? A new hypothesis based on simulated palaeoatmosphere experiments. In PDF, Palaeogeography, Palaeoclimatology, Palaeoecology, 464: 51-64. See also here.

BBC Earth timeline.
Oxygen enters the atmosphere.

D. Beerling et al. (2009): Methane and the CH4 related greenhouse effect over the past 400 million years. In PDF.

! D.J. Beerling and C.P. Osborne (2002): Physiological ecology of Mesozoic polar forests in a high CO2 environment. Annals of Botany, 89: 329-339.

! D.J. Beerling and D.L. Royer (2002): Fossil plants as indicators of the Phanerozoic global carbon cycle. PDF file, Annu. Rev. Earth Planet. Sci., 30: 527-556.

D.J. Beerling et al. (2001): Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era. PDF file, Nature, 410.

D.J. Beerling (1998): The future as the key to the past for palaeobotany? PDF file, Trends in Ecology & Evolution.

D.J. Beerling (1998): The future as the key to the past for palaeobotany? Abstract, Trends in Ecology & Evolution.
This expired link is available through the Internet Archive´s Wayback Machine.

D.J. Beerling and R.A. Berner (2005): Feedbacks and the coevolution of plants and atmospheric CO2. In PDF, PNAS, 102.

D.J. Beerling (2013): Atmospheric carbon dioxide: a driver of photosynthetic eukaryote evolution for over a billion years? In PDF, Philos. Trans. R. Soc. Lond. B, Biol. Sci., 367: 477-482.

David Beerling, White Rose Palaeobiology Group, UK: Atmospheric CO2 and climate change during the Permo-Carboniferous glaciation inferred from fossil plants. Project description. See also here (Low atmospheric CO2 levels during the Permo- Carboniferous glaciation inferred from fossil lycopsidsPDF file, in PDF).
These expired links are available through the Internet Archive´s Wayback Machine.

! A. Bekker et al. (2004): Dating the rise of atmospheric oxygen. Free access, Nature, 427: 117-120.
"Several lines of geological and geochemical evidence indicate that the level of atmospheric oxygen was extremely low before 2.45 billion years (Gyr) ago, and that it had reached considerable levels by 2.22 Gyr ago. (...) evidence that the rise of atmospheric oxygen had occurred by 2.32 Gyr ago".

! C.M. Belcher et al. (2010): Baseline intrinsic flammability of Earth´s ecosystems estimated from paleoatmospheric oxygen over the past 350 million years. In PDF, PNAS, 107.

Phil Berardelli, ScienceNOW Daily News: Oxygenated Oceans Go Way, Way Back. See also: New Evidence for an Earlier Origin of Oxygenic Photosynthesis (NASA Astrobiology Institute).

! H. Beraldi-Campesi (2013): Early life on land and the first terrestrial ecosystems. In PDF, Ecological Processes, 2. See also here.
Note figure 1: Suggested chronology of geological, atmospheric, and biological events during the Hadean, Archean, and Paleoproterozoic eons.

! R.A. Berner et al. (2007): Oxygen and evolution. In PDF, Science, 316.
Now recovered from the Internet Archive´s Wayback Machine.

! R.A. Berner (2006): GEOCARBSULF: A combined model for Phanerozoic atmospheric O2 and CO2. PDF file, Geochimica et Cosmochimica Acta, 70: 5653-5664.

Robert A. Berner (2004): The Phanerozoic carbon cycle: CO2 and O2. In PDF, Oxford University Press.

! R.A. Berner and Z. Kothavala (2001): GEOCARB III: a revised model of atmospheric CO2 over Phanerozoic time. In PDF, American Journal of Science, 301: 182-204. See also here.

Robert A. Berner, Department of Geology and Geophysics, Yale University, New Haven, CT: Atmospheric oxygen over Phanerozoic time. PNAS, Vol. 96, Issue 20, 10955-10957, September 28, 1999.

! Robert A. Berner (1990): Atmospheric carbon dioxide levels over Phanerozoic time. PDF file, Science.

Robert A. Berner, Department of Geology and Geophysics, Yale University, New Haven, CT: Atmospheric oxygen over Phanerozoic time. PNAS, Vol. 96, Issue 20, 10955-10957, September 28, 1999.

Robert A. Berner, Geology and Geophysics, Yale University, New Haven, Connecticut: The Rise of Plants and Their Effect on Weathering and Atmospheric CO2 (now via wayback archive). See also here, and there.

C.K. Boyce and M.A. Zwieniecki (2018): The prospects for constraining productivity through time with the whole-plant physiology of fossils. Open access, New Phytologist.

C.K. Boyce and M.A. Zwieniecki (2012): Leaf fossil record suggests limited influence of atmospheric CO2 on terrestrial productivity prior to angiosperm evolution. In PDF, PNAS, 109: 10403-10408.

Terry Boyce, The University of Hong Kong: The Evolution of the Atmosphere. Now via wayback archive.

T.J. Brodribb and T.S. Feild (2010): Leaf hydraulic evolution led a surge in leaf photosynthetic capacity during early angiosperm diversification. In PDF, Ecology Letters, 13: 175-183. See also here.
"... Our data suggest that early terrestrial angiosperms produced leaves with low photosynthetic rates, but that subsequent angiosperm success is linked to a surge in photosynthetic capacity during their early diversification".

! D.E. Canfield (2005): The early history of atmospheric oxygen: homage to Robert M. Garrels. In PDF, Annual Review of Earth and Planetary Sciences, 3: 1-36. See also here and there.

T. Cardona (2018): Early Archean origin of heterodimeric Photosystem I. In PDF, Heliyon, 4. See also here.

T. Cardona (2016): Reconstructing the Origin of Oxygenic Photosynthesis: Do Assembly and Photoactivation Recapitulate Evolution? Front. PlantSci., 7: 257.

! T.W. Dahl and S.K.M. Arens (2020): The impacts of land plant evolution on Earth's climate and oxygenation state – An interdisciplinary review. Open access, Chemical Geology, 547.

S.J. Daines et al. (2017): Atmospheric oxygen regulation at low Proterozoic levels by incomplete oxidative weathering of sedimentary organic carbon. Nat. Commun., 8.

David J. Des Marais: Palaeobiology: Sea change in sediments. Abstract, Nature 437, 826-827; 2005. Earth's oxygen levels and microbial "footprints".

Senatskommission für Zukunftsaufgaben der Geowissenschaften der Deutschen Forschungsgemeinschaft (DFG): Dynamische Erde – Zukunftsaufgaben der Geowissenschaften.
8.1 - Die Evolution von Atmosphäre und Ozeanen. In German.

Deutschlandfunk (a German radio station): An Sauerstoffmangel eingegangen. Easy to understand information about the Permian/Triassic mass extinction aftermath and thin air (with statements of Robert Berner, Robert Dudley, Raymond Huey, Peter Ward). In German. You can also listen to this article ("Audio on demand").

Y. Donnadieu et al. (2009): Exploring the climatic impact of the continental vegetation on the Mezosoic atmospheric CO2 and climate history. In PDF, Clim. Past, 5: 85-96.

UCD Plant Palaeoecology and Palaeobiology Group, Dublin, Ireland:
OXYEVOL: The role of atmospheric oxygen in plant evolution over the past 400 million years.
The aim of the project is to identify how changes in atmospheric O2 and CO2 concentration influence the timing of key evolutionary innovations and shifts in ecological dominance/success of various plant groups throughout geological time.

Earth Learning Idea (James Devon, London). Free PDF downloads for Earth-related teaching ideas. Go to:
Earth´s atmosphere - step by step evolution (in PDF). Using a physical model to show the development of our current atmosphere.

Encyclopaedia Britannica: evolution of the atmosphere. Website saved by the Internet Archive´s Wayback Machine.

! P.G. Falkowski et al. (2005): The rise of oxygen over the past 205 million years and the evolution of large placental mammals. PDF file, Science, 309. Now provided by the Internet Archive´s Wayback Machine.
See also here (abstract). The overall increase in oxygen as a critical factor in the evolution, radiation, and subsequent increase in average size of placental mammals.

! P.G. Falkowski et al. (2000): The global carbon cycle: a test of our knowledge of earth as a system. PDF file, Science, 290.

M.A. Fedonkin (2003): The origin of the Metazoa in the light of the Proterozoic fossil record. In PDF, Paleontological Research, 7: 9-41. See also here.

! W.W. Fischer et al. (2016): How did life survive Earth's great oxygenation? In PDF, Current Opinion in Chemical Biology, 31: 166–178.

B.J. Fletcher et al. (2008): Atmospheric carbon dioxide linked with Mesozoic and early Cenozoic climate change. In PDF, Nat. Geosci., 1: 43-48.

B.J. Fletcher et al. (2005): Fossil bryophytes as recorders of ancient CO2 levels: Experimental evidence and a Cretaceous case study. In PDF.

Ben Fletcher, Department of Animal and Plant Sciences, University of Sheffield:
The role of stomata in the early evolution of land plants.
How the atmosphere affects plants.
These expired links are available through the Internet Archive´s Wayback Machine.

P.J. Franks and D.L. Royer (2017): Comment on "Was atmospheric CO2 capped at 1000ppm over the past 300millionyears?" by McElwain JC et al. In PDF, Palaeogeography, Palaeoclimatology, Palaeoecology, 472: 256–259. See also here.

P.J. Franks et al. (2014): New constraints on atmospheric CO2 concentration for the Phanerozoic. Open access, Geophys. Res. Lett., 41: 4685-4694.

! P.J. Franks et al. (2013): Sensitivity of plants to changing atmospheric CO2 concentration: from the geological past to the next century. In PDF, New Phytologist, 197.

! P.J. Franks et al. (2012): Megacycles of atmospheric carbon dioxide concentration correlate with fossil plant genome size. In PDF, Phil. Trans. R. Soc. B, 367: 556-564. See also here.

! I.J. Glasspool and A.C. Scott 2010): Phanerozoic concentrations of atmospheric oxygen reconstructed from sedimentary charcoal. Abstract, Nature Geoscience, 3:627-630.

! J.B. Graham et al. (1995): Implications of the late Paleozoic oxygen pulse for physiology and evolution. In PDF.

Y. Goddéris et al. (2014): The role of palaeogeography in the Phanerozoic history of atmospheric CO2 and climate. In PDF, Earth-Science Reviews, 128: 122-138.

W.A. Green (2010): The function of the aerenchyma in arborescent lycopsids: evidence of an unfamiliar metabolic strategy. PDF file, Proc. R. Soc., B, 277: 2257-2267.

! J.L. Grenfell et al. (2010): Co-evolution of atmospheres, life, and climate. PDF file, Astrobiology.

John Groves, Department of Earth Science, University of Northern Iowa: Oxygen & Evolution - A hot topic in paleobiology. Powerpoint presentation.

E. Hand (2017): Fossil leaves bear witness to ancient carbon dioxide levels. Abstract, Science, 355.

J.F. Harrison et al. (2010): Atmospheric oxygen level and the evolution of insect body size. In PDF, Proc. R. Soc., B, 277: 1937-1946.

M. Haworth et al. (2014): On the reconstruction of plant photosynthetic and stress physiology across the Triassic-Jurassic boundary. In PDF, Turkish Journal of Earth Sciences.

! W.W. Hay (2017): Toward understanding Cretaceous climate - An updated review. Science China Earth Sciences, 60: 5–19. See also here (abstract).

James D. Hays, The Climate System: Early Earth and the Evolution of the Atmosphere. Comparison of Earth with its neighbor planets.

! J.I. Hedges (1992): Global biogeochemical cycles: progress and problems. In PDF, Marine chemistry. See also here (abstract).

! J.B. Hedges (2004): A molecular timescale of eukaryote evolution and the rise of complex multicellular life. BMC evolutionary biology.

S.B. Hedges et al. (2001): Earth System Processes - Global Meeting (June 24-28, 2001) Edinburgh: A GENOMIC TIMESCALE FOR THE RISE IN OXYGEN AND ORIGIN OF EUKARYOTES. An abstract.

! D. Hibbett et al. (2016): Climate, decay, and the death of the coal forests. In PDF, Current Biology 26.

R.B. Huey and P:D. Ward (2005): Climbing a Triassic Mount Everest: Into thinner air. In PDF, JAMA-Journal of the American Medial Association, 294: 1761-1762.

C. Humphreys: Fossil bryophyte proxy contributes to palaeo-atmospheric CO2 predictions. In PDF. See also here.

C. Humphreys: Literature Review: Abiotic and Biotic Influences on the Productivity of Early Land Plants. In PDF. See also here.

Tran T. Huynh and Christopher J. Poulsen (2005): Rising atmospheric CO2 as a possible trigger for the end-Triassic mass extinction. PDF file, Palaeogeography, Palaeoclimatology, Palaeoecology, 217: 223-242.

! T.P. Jones and W.G. Chaloner (1991): Fossil charcoal, its recognition and palaeoatmospheric significance. Abstract.

! G.J. Jordan (2011): A critical framework for the assessment of biological palaeoproxies: predicting past climate and levels of atmospheric CO2 from fossil leaves. In PDF, New Phytologist.

JuJu Media, Science a GoGo: News, August 6, 200, Rocks Provide Clues To Origin Of Oxygen On Earth.

J.F. Kasting and J.L. Siefert (2002): Life and the evolution of Earth´s atmosphere. In PDF, Science.

J.F. Kasting (2001): Department of Geosciences, Pennsylvania State University: The Rise of Atmospheric Oxygen. PDF file, Science 293.
This expired link is now available through the Internet Archive´s Wayback Machine.

! P. Kenrick et al. (2012): A timeline for terrestrialization: consequences for the carbon cycle in the Palaeozoic. In PDF, Philosophical Transactions of the Royal Society B, 367: 519-536.
Website saved by the Internet Archive´s Wayback Machine.

! A.H. Knoll and M.A. Nowak (2017): The timetable of evolution. In PDF, Science Advances, 3. See also here.

A.H. Knoll (2014): Paleobiological Perspectives on Early Eukaryotic Evolution. In PDF, see also here.

! A.H. Knoll and H.D. Holland, Harvard University: Oxygen and Proterozoic Evolution: An Update. From:
NATIONAL ACADEMY PRESS, National Research Council, Washington, D.C.,1995: Effects of Past Global Change on Life.

A.J. Krause et al. (2018): Stepwise oxygenation of the Paleozoic atmosphere. Open access, Nature Communications, 9: 4081.

! T.A. Laakso (2017): A theory of atmospheric oxygen. In PDF, Doctoral dissertation, Department of Earth and Planetary Sciences, Harvard University, Graduate School of Arts & Sciences.
Conclusion on PDF page 190.

! A.D.B. Leakey and J.A. Lau (2012): Evolutionary context for understanding and manipulating plant responses to past, present and future atmospheric [CO2]. Phil. Trans. R. Soc. B, 367: 613-629. See als here (in PDF).

T.M. Lenton et al. (2016): Earliest land plants created modern levels of atmospheric oxygen. In PDF, PNAS.

! T.M. Lenton and S.J. Daines (2016): Matworld - the biogeochemical effects of early life on land. In PDF, New Phytologist.

! T.M. Lenton (2002): Chapter 3, The coupled evolution of life and atmospheric oxygen. PDF file, from Lynn J. Rothschild and Adrian M. Lister (eds.), Evolution Planet Earth.

! T.M. Lenton (2001): The role of land plants, phosphorus weathering and fire in the rise and regulation of atmospheric oxygen. In PDF, Global Change Biology, 7: 613-629.

Bruce S. Lieberman and Roger Kaesler (2010): Prehistoric Life Evolution and the Fossil Record. Book announcement (Wiley-Blackwell), including table of contents.
The history of life and the patterns and processes of evolution are especially emphasized, as are the interconnections between our planet, its climate system, and its varied life forms. The book does not just describe the history of life, but uses actual examples from life’s history to illustrate important concepts and theories.
! Available in PDF from here. See especially:
PDF page 38: "Taphonomy."
PDF page 74: "Introduction to Evolution."
PDF page 123: "Extinctions: The Legacy of the Fossil Record."
PDF page 137: "The Permo-Triassic Mass Extinction—Causes and Consequences."
! PDF page 227: "Life, Climate, and Geology."
! PDF page 236: "Life Influencing Geology: the Form and Shape of Rivers and the Rocks they Leave Behind."
! PDF page 242: "Plants, Oxygen, and Coal: More Examples of Life Affecting the Atmosphere and Geology."

! T.W. Lyons et al. (2014): The rise of oxygen in Earth’s early ocean and atmosphere. In PDF, Nature, 506. See also here (abstract and references).

! W.F. Martin and J.F. Allen (2018): An algal greening of land. Free access, Cell, 174: 256-258. See also here.
Note figure 1: Streptophyte Algae and the Rise of Atmospheric Oxygen.

D. Mauquoy et al. (2010): A protocol for plant macrofossil analysis of peat deposits. PDF file, Mires and Peat, 7.

J.C. McElwain (2018): Paleobotany and global change: Important lessons for species to biomes from vegetation responses to past global change, In PDF, Annual review of plant biology, 69: 761–787. See also here

J.C. McElwain and M. Steinthorsdottir (2017): Paleoecology, Ploidy, Paleoatmospheric Composition, and Developmental Biology: A Review of the Multiple Uses of Fossil Stomata. In PDF, Plant Physiology. See also here abstract.

J.C. McElwain et al. (2016): Assessing the role of atmospheric oxygen in plant evolution. Abstract, starting on PDF page 44.
Abstracts, XIV International Palynological Congress, X International Organisation of Palaeobotany Conference, Salvador, Brazil.

J.C. McElwain et al. (2016): Was atmospheric CO2 capped at 1000 ppm over the past 300 million years? In PDF, Palaeogeography, Palaeoclimatology, Palaeoecology, 441: 653–658. See also here.

The University of Michigan: Global Change, Physical Processes:
Global Change 1 Fall 2011 Schedule . Go to:
! Evolution of the Atmosphere: Composition, Structure and Energy.

! I.P. Montañez (2016): A Late Paleozoic climatewindow of opportunity. In PDF, PNAS, 113: 2334-2336. See also here.

! J.L. Morris et al. (2015): Investigating Devonian trees as geo-engineers of past climates: linking palaeosols to palaeobotany and experimental geobiology. In PDF, Palaeontology, 58: 787-801. See also here.

! National Research Council (2011), The National Academies Press, Washington, DC: Understanding Earth's Deep Past: Lessons for Our Climate Future. 177 pages.
In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases.
! See also here (PDF files available to download for free). You may download PDF files from NAP by logging in as a guest, providing only your email address.

M.P. Nelsen et al. (2016): Delayed fungal evolution did not cause the Paleozoic peak in coal production. In PDF, PNAS, 113. See also here (abstract).

W.R. Norris, Department of Natural Sciences, Western New Mexico University, Silver City, NM:
The Challenges of Life on Land. Lecture notes, powerpoint presentation. See also here (in PDF).

Claire O'Connell, The Irish Times, January 15, 2017: "Our climate is changing at a faster pace than ever before in geological history". Interview with J. Jennifer McElwain, University College Dublin, School of Biology and Environmental Science.

! S.L. Olson et al. (2018): Earth: Atmospheric Evolution of a Habitable Planet. PDF file, In: Deeg H., Belmonte J. (eds.) Handbook of Exoplanets. Springer. See also here.
Worth checking out: Figure 2, co-evolution of life and surface environments on Earth.

! Wolfgang Oschmann, Department of Geoscience, Goethe-University, Frankfurt am Main, Germany: The Evolution of the Atmosphere of our Planet Earth. In PDF. About the the origin of earth and the early atmosphere, the role of biosphere and the carbon-cycle and the atmospheric evolution through time.

J.L. Payne et al. (2020): The evolution of complex life and the stabilization of the Earth system. Open access, Interface Focus, 10: 20190106.

A. Piombino (2016): The Heavy Links between Geological Events and Vascular Plants Evolution: A Brief Outline. In PDF, International Journal of Evolutionary Biology, 216.

! A.R.G. Plackett and J.C. Coates (2016): Life’s a beach – the colonization of the terrestrial environment. In PDF, New Phytologist, 212: 831–835. See also here.

The Plymouth State Meteorology Program Composition and Layers of the Atmosphere. A self guided tutorial. Go to: Evolution of the Atmosphere.

! W.M. Post et al. (1990): The global carbon cycle. In PDF, American Scientist.

J.S. Powers et al. (2009): Decomposition in tropical forests: a pan-tropical study of the effects of litter type, litter placement and mesofaunal exclusion across a precipitation gradient. Journal of Ecology, 97: 801-811.

! S.H. Pritchard et al. (1999): Elevated CO2 and plant structure: a review. In PDF, Global Change Biology, 5: 807-837.

! G.J. Retallack (2001): A 300-million-year record of atmospheric carbon dioxide from fossil plant cuticles. In PDF, Nature.
This expired link is available through the Internet Archive´s Wayback Machine. See also:
Supplementary Information for "A 300-million-year record of atmospheric carbon dioxide from fossil plant cuticles" Nature, V411, 287. They are measurements of stomatal index from fossil and living plants. Part 1 has reliable data, and Part 2 has data deemed statistically inadequate from a rarefaction analysis. Abbreviations include SI (stomatal index), Nf (number of fragments counted), Ns (number of stomates counted), Ne (number of epidermal cells counted), and Ma (millions of years ago).

Gunnar Ries, Mente et Malleo blog ( Der Sauerstoff in der Erdatmosphäre (in German).

E.A. Robinson et al. (2012): A meta-analytical review of the effects of elevated CO2 on plant-arthropod interactions highlights the importance of interacting environmental and biological variables. In PDF, New Phytologist, 194: 321-336. See also here (abstract).

D.H. Rothman et al. (2014): Methanogenic burst in the end-Permian carbon cycle. In PDF, PNAS, 111.

Dana L. Royer et al. (2007): Climate sensitivity constrained by CO2 concentrations over the past 420 million years. PDF file, Nature, 446.

! Dana L. Royer et al. (2004): CO2 as a primary driver of Phanerozoic climate. In PDF, GSA Today, 14: 1052-5173.

! D.L. Royer et al. (2001): Phanerozoic atmospheric CO2 change: evaluating geochemical and paleobiological approaches. In PDF, Earth-Science Reviews, 54: 349-392.

D.L. Royer et al. (2001): Paleobotanical Evidence for Near Present-Day Levels of Atmospheric CO2 During Part of the Tertiary. In PDF, Science, 292.

L. Santasalo (2013): The Jurassic extinction events and its relation to CO2 levels in the atmosphere: a case study on Early Jurassic fossil leaves. In PDF, Bachelor´s thesis, Department of Geology, Lund University, Sweden.

M.F. Schaller et al. (2015): A 30 Myr record of Late Triassic atmospheric pCO2 variation reflects a fundamental control of the carbon cycle by changes in continental weathering. In PDF, Geological Society of America Bulletin, 127.

! E. Schneebeli-Hermann et al. (2013): Evidence for atmospheric carbon injection during the end-Permian extinction. Abstract, Geology, 41: 579-582. See also here (in PDF). Geology, Evolution upset: Oxygen-making microbes came last, not first.

Andrew C. Scott and Ian J. Glasspool (2006): The diversification of Paleozoic fire systems and fluctuations in atmospheric oxygen concentration. PDF file, PNAS, 103: 10861-10865. See also here.

A.L. Sessions et al. (2009): The continuing puzzle of the great oxidation event. PDF file, Current Biology, 19: R567-R574.

N.D. Sheldon and N.J. Tabor (2013): Using paleosols to understand paleo-carbon burial. In PDF.

! G.R. Shi and J.B. Waterhouse (2010): Late Palaeozoic global changes affecting high-latitude environments and biotas: an introduction. In PDF, Palaeogeography, Palaeoclimatology, Palaeoecology, 298: 1-16.

Lee J. Siegel, Astrobiology Magazine: The Rise of Oxygen. See also here (PDF file).

M. Slodownik et al. (2021): Fossil seed fern Lepidopteris ottonis from Sweden records increasing CO2 concentration during the end-Triassic extinction event. Free access, Palaeogeography, Palaeoclimatology, Palaeoecology, 564.

! F. Sønderholm and C.J. Bjerrum (2021): Minimum levels of atmospheric oxygen from fossil tree roots imply new plant-oxygen feedback. Open access, Geobiology,19: 250–260.
"... we consider archaeopterid fossil root systems, resembling those of modern mature conifers.
...The absence of large and deeply penetrating roots prior to the Middle Devonian may have been related to low atmospheric O2 pressures, but it is just as likely that the early evolution of roots reflects structural plant evolution rather than available soil O2. ..."

SpaceDaily: NASA Scientists Propose New Theory of Earth's Early Evolution. The rise of oxygen.

M. Steinthorsdottir and V. Vajda (2013): Early Jurassic (late Pliensbachian) CO2 concentrations based on stomatal analysis of fossil conifer leaves from eastern Australia. In PDF, Gondwana Research.

M. Steinthorsdottir et al. (2011): Extremely elevated CO2 concentrations at the Triassic/Jurassic boundary. In PDF, Palaeogeography, Palaeoclimatology, Palaeoecology, 308: 418-

! Vince Stricherz, UW Today (University of Washington, Seattle, WA): Low oxygen likely made "Great Dying" worse, greatly delayed recovery.
About some results of Peter Ward and Raymond Huey, University of Washington.
"... nearby populations of the same species were cut off from each other because even low-altitude passes had insufficient oxygen to allow animals to cross from one valley to the next. ..."
"... it appears the greatly reduced oxygen actually created impassable barriers that affected the ability of animals to move and survive ..."

! R. Tappert et al. (2013): Stable carbon isotopes of C3 plant resins and ambers record changes in atmospheric oxygen since the Triassic. In PDF, Geochimica et Cosmochimica Acta, 121: 240-262.

V.J. Thannicka (2009): Oxygen in the evolution of complex life and the price we pay. Am. J. Respir. Cell Mol. Biol., 40: 507-510.

! H Tian et al. (2016): The terrestrial biosphere as a net source of greenhouse gases to the atmosphere. In PDF, Nature. See also here (abstract).

Kenneth M. Towe, Tennille, GA: The Problematic Rise of Archean Oxygen. Science 22, February 2002: Vol. 295. no. 5559, p. 1419.

! D. Uhl et al. (2008): Permian and Triassic wildfires and atmospheric oxygen levels. In PDF, 1st WSEAS International Conference on Environmental and Geological Science and Enginering, Malta. See also here.

University World News (August 08, 2010): New technique estimates past oxygen levels.

G.J. Vermeij (2016): Gigantism and Its Implications for the History of Life. PLoS ONE, 11.

! M.W. Wallace et al. (2017): Oxygenation history of the Neoproterozoic to early Phanerozoic and the rise of land plants. In PDF, Earth and Planetary Science Letters, 466: 12–19. See also here.

! L.M. Ward et al. (2016): Timescales of Oxygenation Following the Evolution of Oxygenic Photosynthesis. In PDF, Orig. Life Evol. Biosph.,46: 51-65.

P. Ward et al. (2006): Confirmation of Romer´s Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization. In PDF, PNAS, see also here.

! Helmut Weissert Geologie, ETH Zürich: Evolution der Biosphäre. Bilder aus der Erdgeschichte. PDF file, in German.
Now provided by the Internet Archive´s Wayback Machine.

Wikipedia, the free encyclopedia:
! Oxygen evolution.
Earth's atmosphere.
Great Oxygenation Event.
Carbon cycle.

Wikipedia, the free encyclopedia:
Great Oxygenation Event.
Große Sauerstoffkatastrophe (in German).

! J.P. Wilson (2020): Carboniferous plant physiology breaks the mold. Free access, New Phytologist.

! J.P. Wilson et al. (2017): Dynamic carboniferous tropical forests: new views of plant function and potential for physiological forcing of climate. Free access, New Phytologist, 215: 1333–1353.

A.M.E. Winguth (2016): Changes in productivity and oxygenation during the Permian-Triassic transition. Geology, 44: 783–784.

! V. Zimorski et al. (2019): Energy metabolism in anaerobic eukaryotes and Earth's late oxygenation. In PDF, Free Radical Biology and Medicine. See also here.
Note fig. 1: Summary of oxygen accumulation of earth history.

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