Tectonic-driven climate change and the diversification of angiosperms

Chaboureau, Anne-Claire; Sepulchre, Pierre; Donnadieu, Yannick; Franc, Alain

doi:10.1073/pnas.1324002111

Cited by 93 publications

(94 citation statements)

References 44 publications

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“…Critically, the geological timeframe bounded by the close of the Permian to the Early Cretaceous, which encapsulates our reconstructed long phylogenetic fuse of early angiosperm evolution, marks a global pattern of aridity across equatorial to mid-latitude wet zones which consisted of a large geographic area (Chaboureau et al 2014; Ziegler et al 2003). The best evidence for stable, wet, non-freezing regions comes from coals that are geographically restricted to high latitude and near boreal zones (Boyce and Lee 2010; Ziegler et al 2003).…”

Section: Discussionmentioning

confidence: 96%

The Emergence of Earliest Angiosperms May be Earlier than Fossil Evidence Indicates

et al. 2017

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Gaps between molecular ages and fossils undermine the validity of time-calibrated molecular phylogenies. An example of the time gap surrounds the age of angiosperm’s origin. We calculate molecular ages of the earliest flowering plant lineages using 22 fossil calibrations (101 genera, 40 families). Our results reveal the origin of angiosperms at the late Permian, ~275 million years ago. Different prior probability curves of molecular age calculations on dense calibration point distributions had little effect on overall age estimates compared to the effects of altered calibration points. The same is true for reasonable root age constraints. We conclude that our age estimates based on multiple datasets, priors, and calibration points are robust and the true ages are likely between our extremes. Our results, when integrated with the ecophysiological evolution of early angiosperms, imply that the ecology of the earliest angiosperms is critical to understand the pre-Cretaceous evolution of flowering plants.

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Section: Discussionmentioning

confidence: 96%

The Emergence of Earliest Angiosperms May be Earlier than Fossil Evidence Indicates

et al. 2017

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“…Among insects, ants, another very diverse clade, were not pollinators [54]. The late Cretaceous diversification of angiosperms also coincides with a number of other factors which complicate a simple co-evolutionary story: a diversification of multituberculate mammals as identified by dental complexity, taxonomic diversity and body size [55,56], apparent bursts of whole-genome duplication among angiosperms [57,58] and climatic changes driven by continental tectonics [59]. While there is relatively little doubt that the diversification of one clade can influence the diversification of another in a co-evolutionary fashion, disentangling the patterns of influence can be difficult.…”

Section: Constructive Radiationsmentioning

confidence: 98%

Novelty and Innovation in the History of Life

2015

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The history of life as documented by the fossil record encompasses evolutionary diversifications at scales ranging from the Ediacaran-Cambrian explosion of animal life and the invasion of land by vascular plants, insects and vertebrates to the diversification of flowering plants over the past 100 million years and the radiation of horses. Morphological novelty and innovation has been a recurrent theme. The architects of the modern synthesis of evolutionary theory made three claims about evolutionary novelty and innovation: first, that all diversifications in the history of life represent adaptive radiations; second, that adaptive radiations are driven principally by ecological opportunity rather than by the supply of new morphological novelties, thus the primary questions about novelty and innovation focus on their ecological and evolutionary success; and third, that the rate of morphological divergence between taxa was more rapid early in the history of a clade but slowed over time as ecological opportunities declined. These claims have strongly influenced subsequent generations of evolutionary biologists, yet over the past two decades each has been challenged by data from the fossil record, by the results of comparative phylogenetic analyses and through insights from evolutionary developmental biology. Consequently a broader view of novelty and innovation is required. An outstanding issue for future work is identifying the circumstances associated with different styles of diversification and whether their frequency has changed through the history of life.

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“…In terms of higher-level diversity, pteridophytes were a relatively minor component of terrestrial ecosystems; instead, environments on land were dominated by gymnosperms, before angiosperms began their ascent in the Early Cretaceous (e.g. Niklas, 1988;Philippe et al, 2008;Coiffard et al, 2012), possibly driven by tectonically influenced changes to atmospheric carbon levels and climate change (Barrett & Willis, 2001;Chaboureau et al, 2014), or increasing environmental disturbance of angiosperm environments by herbivores (Barrett & Willis, 2001). However, in the earliest Cretaceous, floras were still dominated by cycadophytes, ferns, and conifers (Butler et al, 2009a,b), with angiosperms absent from pre-Hauterivian-aged rocks, and there were no significant changes in the abundance of major plant groups across the J/K boundary (Barrett & Willis, 2001).…”

Section: (6) Plantsmentioning

confidence: 99%

Biotic and environmental dynamics through theLateJurassic–EarlyCretaceous transition: evidence for protracted faunal and ecological turnover

et al. 2016

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The Late Jurassic to Early Cretaceous interval represents a time of environmental upheaval and cataclysmic events, combined with disruptions to terrestrial and marine ecosystems. Historically, the Jurassic/Cretaceous (J/K) boundary was classified as one of eight mass extinctions. However, more recent research has largely overturned this view, revealing a much more complex pattern of biotic and abiotic dynamics than has previously been appreciated. Here, we present a synthesis of our current knowledge of Late Jurassic-Early Cretaceous events, focusing particularly on events closest to the J/K boundary. We find evidence for a combination of short-term catastrophic events, large-scale tectonic processes and environmental perturbations, and major clade interactions that led to a seemingly dramatic faunal and ecological turnover in both the marine and terrestrial realms. This is coupled with a great reduction in global biodiversity which might in part be explained by poor sampling. Very few groups appear to have been entirely resilient to this J/K boundary 'event', which hints at a 'cascade model' of ecosystem changes driving faunal dynamics. Within terrestrial ecosystems, larger, more-specialised organisms, such as saurischian dinosaurs, appear to have suffered the most. Medium-sized tetanuran theropods declined, and were replaced by larger-bodied groups, and basal eusauropods were replaced by neosauropod faunas. The ascent of paravian theropods is emphasised by escalated competition with contemporary pterosaur groups, culminating in the explosive radiation of birds, although the timing of this is obfuscated by biases in sampling. Smaller, more ecologically diverse terrestrial non-archosaurs, such as lissamphibians and mammaliaforms, were comparatively resilient to extinctions, instead documenting the origination of many extant groups around the J/K boundary. In the marine realm, extinctions were focused on low-latitude, shallow marine shelf-dwelling faunas, corresponding to a significant eustatic sea-level fall in the latest Jurassic. More mobile and ecologically plastic marine groups, such as ichthyosaurs, survived the boundary relatively unscathed. High rates of extinction and turnover in other macropredaceous marine groups, including plesiosaurs, are accompanied by the origin of most major lineages of extant sharks. Groups which occupied both marine and terrestrial ecosystems, including crocodylomorphs, document a selective extinction in shallow marine forms, whereas turtles appear to have diversified. These patterns suggest that different extinction selectivity and ecological processes were operating between marine and terrestrial ecosystems, which were ultimately important in determining the fates of many key groups, as well as the origins of many major extant lineages. We identify a series of potential abiotic candidates for driving these patterns, including multiple bolide impacts, several episodes of flood basalt eruptions, dramatic climate change, and major disruptions to oceanic systems. The J/K t...

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Tectonic-driven climate change and the diversification of angiosperms

Cited by 93 publications

References 44 publications

The Emergence of Earliest Angiosperms May be Earlier than Fossil Evidence Indicates

The Emergence of Earliest Angiosperms May be Earlier than Fossil Evidence Indicates

Novelty and Innovation in the History of Life

Biotic and environmental dynamics through theLateJurassic–EarlyCretaceous transition: evidence for protracted faunal and ecological turnover

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