The relationship between Neogene dinoflagellate cysts and global climate dynamics

Boyd, J; Riding, James B.; Pound, Matthew J.; Schepper, Stijn De; Ivanovic, Ruza; Haywood, Alan M.; Wood, Stephanie E.L.

doi:10.1016/j.earscirev.2017.11.018

Cited by 23 publications

(16 citation statements)

References 171 publications

(261 reference statements)

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“…As fungi are a key component of the carbon cycle, understanding the fluctuations in fungal taxonomic and functional diversity with palaeoclimate changes could provide a better understanding of past changes in atmospheric carbon dioxide concentration (Clemmensen et al 2013;Quirk et al 2014). This is of vital importance in the Miocene, where atmospheric carbon dioxide concentration reconstructions cannot be easily reconciled with wider palaeoclimate evidence (Knorr et al 2011;Boyd et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Three new Miocene fungal palynomorphs from the Brassington Formation, Derbyshire, UK

et al. 2018

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The Middle to Late Miocene Brassington Formation from the Peak District in Derbyshire, central UK, has yielded a diverse vegetation assemblage, but until now there have been no reports of fungal remains. Here we describe three new species of fossil fungal palynomorphs from the Kenslow Member of the Brassington Formation. The taxa have been assigned to the Chaetosphaeriaceae and Pyrenulales, respectively, and were most likely saprophytic members of the community. The extant living relatives of the new fossil fungi are commonly found on decaying wood, often submerged in freshwater. A saprobic ecology on submerged decaying wood is consistent with sedimentological evidence that shows the Kenslow Member was deposited in a lacustrine or wetland environment. This is the first reported occurrence of the genera Rhexoampullifera in the fossil record.

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Section: Discussionmentioning

confidence: 99%

Three new Miocene fungal palynomorphs from the Brassington Formation, Derbyshire, UK

et al. 2018

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“…One long-term goal that emerged from this community effort was to formally evaluate the Miocene as a future warm climate analog, but furtherance of that goal requires expanded and deepened coordination of past, current, and future research on the Miocene. As one component of that effort, here we review the main accomplishments and insights gained since some of the earlier comprehensive reviews of the Miocene or parts thereof (e.g., Boyd et al, 2018;Fortelius et al, 2003;Herbert et al 2016;Janis et al, 1993;Kennett, 1985;Lyle et al, 2008;Pound et al, 2012;Shevenell et al, 2008;Strömberg, 2011). Our aim is to place what we know about the long term, broad-scale evolution of the global Miocene system in context of key scientific questions that are currently (at least partially) answered as well as those that remain unanswered to date.…”

Section: Scope Of Reviewmentioning

confidence: 99%

The Miocene: The Future of the Past

Steinthorsdottir

Coxall

Boer

et al. 2021

Paleoceanog and Paleoclimatol

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The Miocene epoch (23.03-5.33 Ma) was a time interval of global warmth, relative to today.Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the same taxa that exist today. Miocene climate was dynamic: long periods of early and late glaciation bracketed a ∼2 Myr greenhouse interval-the Miocene Climatic Optimum (MCO). Floras, faunas, ice sheets, precipitation, pCO 2 , and ocean and atmospheric circulation mostly (but not ubiquitously) covaried with these large changes in climate. With higher temperatures and moderately higher pCO 2 (∼400-600 ppm), the MCO has been suggested as a particularly appropriate analog for future climate scenarios, and for assessing the predictive accuracy of numerical climate models-the same models that are used to simulate future climate. Yet, Miocene conditions have proved difficult to reconcile with models. This implies either missing positive feedbacks in the models, a lack of knowledge of past climate forcings, or the need for re-interpretation of proxies, which might mitigate the model-data discrepancy. Our understanding of Miocene climatic, biogeochemical, and oceanic changes on broad spatial and temporal scales is still developing. New records documenting the physical, chemical, and biotic aspects of the Earth system are emerging, and together provide a more comprehensive understanding of this important time interval. Here, we review the state-of-the-art in Miocene climate, ocean circulation, biogeochemical cycling, ice sheet dynamics, and biotic adaptation research as inferred through proxy observations and modeling studies. Plain Language Summary During the Miocene time period (∼23-5 million years ago),Planet Earth looked similar to today, with some important differences: the climate was generally warmer and highly variable, while atmospheric CO 2 was not much higher. Continental-sized ice sheets were only present on Antarctica, but not in the northern hemisphere. The continents drifted to near their modernday positions, and plants and animals evolved into the many (near) modern species. Scientists study the Miocene because present-day and projected future CO 2 levels are in the same range as those reconstructed for the Miocene. Therefore, if we can understand climate changes and their biotic responses from the Miocene past, we are able to better predict current and future global changes. By comparing Miocene climate reconstructions from fossil and chemical data to climate simulations produced by computer models, scientists are able to test their understanding of the Earth system under higher CO 2 and warmer conditions than those of today. This helps in constraining future warming scenarios for the coming STEINTHORSDOTTIR ET AL.

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“…Hence, a comprehensive knowledge of the literature can be critical in studies with a global perspective (e.g. Mullins et al 2006;Pound et al 2011Pound et al , 2012Woods et al 2014;Boyd et al 2018). More generally, if scholars of the fossil record and the diversity of life such as John Alroy, Mike Foote, Robert Rohde and Jack Sepkoski had been able to access compilations such as the ones I have described, their groundbreaking databases and research would have been far easier to compile (e.g.…”

Section: Editorialmentioning

confidence: 99%

Literature compilations in palynology are not simply tedious lists

Riding

2019

Palynology

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The relationship between Neogene dinoflagellate cysts and global climate dynamics

Abstract: This is a repository copy of The relationship between Neogene dinoflagellate cysts and global climate dynamics.

Cited by 23 publications

References 171 publications

Three new Miocene fungal palynomorphs from the Brassington Formation, Derbyshire, UK

Three new Miocene fungal palynomorphs from the Brassington Formation, Derbyshire, UK

The Miocene: The Future of the Past

Literature compilations in palynology are not simply tedious lists

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