An updated paleontological timetree of lissamphibians, with comments on the anatomy of Jurassic crown-group salamanders (Urodela)

Marjanović, David; Laurin, Michel

doi:10.1080/08912963.2013.797972

Cited by 63 publications

(57 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Within Lissamphibia, there was a small increase in total diversity over the J/K boundary (Fara, 2004). Molecular dates of lissamphibian radiations have wide uncertainty ranges, but it appears that several species-rich lineages, particularly within Anura, might have diversified around the J/K boundary (Marjanović & Laurin, 2013). Anurans were largely unaffected across the J/K boundary at higher taxonomic levels, but more work on the systematics of the group is required to clarify its macroevolutionary history (Marjanović & Laurin, 2007).…”

Section: (I) Lissamphibiansmentioning

confidence: 99%

“…At the J/K boundary, the majority of rhynchocephalians went extinct, especially those with a piscivorous or molluscivorous diet (Rauhut et al, 2012). Contemporaneous with this extinction is the diversification of several other major lepidosaurian lineages (Marjanović & Laurin, 2013). These clades maintained high ecological plasticity through the J/K boundary, which might have sustained their high diversity compared to more ecologically 'static' lineages.…”

Section: (3) Biotic Interactions and Evidence For A Faunal Turnover (mentioning

confidence: 99%

See 1 more Smart Citation

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

et al. 2016

View full text Add to dashboard Cite

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...

show abstract

Section: (I) Lissamphibiansmentioning

confidence: 99%

Section: (3) Biotic Interactions and Evidence For A Faunal Turnover (mentioning

confidence: 99%

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Unlike nonavian dinosaurs, whose demise is well documented in the rocks, the fossil record of frogs is so far largely uninformative about survival/ extinction across the KPB (37)(38)(39)(40). In the present study, the three parallel combinations of precise node ages overlapping the KPB, preceded by a long branch and followed by very short but strongly supported branches, indicate three extinctions followed by rapid divergence.…”

Section: Neobatrachia Archaeobatrachiamentioning

confidence: 99%

Phylogenomics reveals rapid, simultaneous diversification of three major clades of Gondwanan frogs at the Cretaceous–Paleogene boundary

Feng

Blackburn

Liang

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

281

309

View full text Add to dashboard Cite

Frogs (Anura) are one of the most diverse groups of vertebrates and comprise nearly 90% of living amphibian species. Their worldwide distribution and diverse biology make them well-suited for assessing fundamental questions in evolution, ecology, and conservation. However, despite their scientific importance, the evolutionary history and tempo of frog diversification remain poorly understood. By using a molecular dataset of unprecedented size, including 88-kb characters from 95 nuclear genes of 156 frog species, in conjunction with 20 fossil-based calibrations, our analyses result in the most strongly supported phylogeny of all major frog lineages and provide a timescale of frog evolution that suggests much younger divergence times than suggested by earlier studies. Unexpectedly, our divergence-time analyses show that three species-rich clades (Hyloidea, Microhylidae, and Natatanura), which together comprise ∼88% of extant anuran species, simultaneously underwent rapid diversification at the Cretaceous-Paleogene (K-Pg) boundary (KPB). Moreover, anuran families and subfamilies containing arboreal species originated near or after the KPB. These results suggest that the K-Pg mass extinction may have triggered explosive radiations of frogs by creating new ecological opportunities. This phylogeny also reveals relationships such as Microhylidae being sister to all other ranoid frogs and African continental lineages of Natatanura forming a clade that is sister to a clade of Eurasian, Indian, Melanesian, and Malagasy lineages. Biogeographical analyses suggest that the ancestral area of modern frogs was Africa, and their current distribution is largely associated with the breakup of Pangaea and subsequent Gondwanan fragmentation. amphibia | Anura | nuclear genes | phylogeny | divergence time

show abstract

“…Roughly 23 genera are scattered throughout the Jurassic, Cretaceous and Tertiary [Báez, 1996;Sanchiz, 1998;Marjanović and Laurin, 2014;Martín and Sanchiz, 2015]. Previous estimates of the age of Pipidae (as a crown clade) vary from 126 to 165 MY, and its divergence from Rhinophrynidae spans ( table 1 ).…”

mentioning

confidence: 99%

Xenopus in Space and Time: Fossils, Node Calibrations, Tip-Dating, and Paleobiogeography

Cannatella

2015

Cytogenet Genome Res

View full text Add to dashboard Cite

Published data from DNA sequences, morphology of 11 extant and 15 extinct frog taxa, and stratigraphic ranges of fossils were integrated to open a window into the deep-time evolution of Xenopus. The ages and morphological characters of fossils were used as independent datasets to calibrate a chronogram. We found that DNA sequences, either alone or in combination with morphological data and fossils, tended to support a close relationship between Xenopus and Hymenochirus, although in some analyses this topology was not significantly better than the Pipa + Hymenochirus topology. Analyses that excluded DNA data found strong support for the Pipa + Hymenochirus tree. The criterion for selecting the maximum age of the calibration prior influenced the age estimates, and our age estimates of early divergences in the tree of frogs are substantially younger than those of published studies. Node-dating and tip-dating calibrations, either alone or in combination, yielded older dates for nodes than did a root calibration alone. Our estimates of divergence times indicate that overwater dispersal, rather than vicariance due to the splitting of Africa and South America, may explain the presence of Xenopus in Africa and its closest fossil relatives in South America.

show abstract

An updated paleontological timetree of lissamphibians, with comments on the anatomy of Jurassic crown-group salamanders (Urodela)

Cited by 63 publications

References 72 publications

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover

Phylogenomics reveals rapid, simultaneous diversification of three major clades of Gondwanan frogs at the Cretaceous–Paleogene boundary

Xenopus in Space and Time: Fossils, Node Calibrations, Tip-Dating, and Paleobiogeography

Contact Info

Product

Resources

About