Synchrotron imaging reveals diversity in archosauromorph growth strategies by the end of the early Triassic [PDF]
iScienceSummary: Archosauromorphs are a diverse clade of vertebrates that originated in the Early Triassic and persist today as crown birds (ornithodirans) and crocodilians (pseudosuchians).
Kathleen.N. Dollman +7 more
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Sediment provenance of Late Carboniferous-Early Triassic in the Puyang area, Eastern North China Craton [PDF]
iScienceSummary: To reveal the stratigraphic age of the Shiqianfeng Formation in the eastern continental basin of the North China Craton and the provenance of its sediments from the Late Carboniferous to the Early Triassic, six sandstone samples from the Puyang ...
Kangnan Yan +6 more
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A new coelacanth (Actinistia, Sarcopterygii) from the Early Triassic of Anhui, China [PDF]
Scientific ReportsCoelacanths (e.g., Latimeria) are a curious group of sarcopterygian fishes that survive over hundreds of millions of years and are important in evolutionary biology.
Qing-Hua Dai +7 more
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A new eucrocopodan archosauriform from the Middle Triassic of southern Brazil and the phylogeny of Euparkeriidae [PDF]
Scientific ReportsArchosauriformes comprise a diverse range of reptiles, including the crown-group Archosauria, which flourished during the Triassic Period. Early-diverging archosauriforms, such as proterosuchids and erythrosuchids, are becoming progressively well-known ...
Maurício S. Garcia +4 more
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A new Triassic austrolimulid from Poland presents insight into xiphosurid evolution and palaeobiogeography at the dawn of the Mesozoic [PDF]
PeerJXiphosurids are aquatic chelicerates widely viewed as examples of so-called ‘living fossils’ due to their apparent morphological conservatism and limited diversity since at least the Jurassic.
Jonatan Audycki +3 more
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Recurrent and Long-Term Oceanic Anoxia Contributed to Aborted Biotic Recovery Following the Permian–Triassic Crisis [PDF]
BiologyThe influence of ocean chemistry on Early Triassic biotic recovery is poorly understood in the Chaohu Area. Here, we evaluate the influence of ocean chemistry following the Permian–Triassic crisis using pyrite content, δ13Corg, and S isotopic composition
Wenhao Li, Bowei Yuan
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A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes
Frontiers in Earth Science, 2021 About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic.
Carlo Romano
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A new Lower Triassic ichthyopterygian assemblage from Fossil Hill, Nevada [PDF]
PeerJ, 2016 We report a new ichthyopterygian assemblage from Lower Triassic horizons of the Prida Formation at Fossil Hill in central Nevada. Although fragmentary, the specimens collected so far document a diverse fauna.
Neil P. Kelley +3 more
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A new stem group echinoid from the Triassic of China leads to a revised macroevolutionary history of echinoids during the end-Permian mass extinction [PDF]
Royal Society Open Science, 2018 The Permian–Triassic bottleneck has long been thought to have drastically altered the course of echinoid evolution, with the extinction of the entire echinoid stem group having taken place during the end-Permian mass extinction. The Early Triassic fossil
Jeffrey R. Thompson +8 more
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Early archosauromorph remains from the Permo-Triassic Buena Vista Formation of north-eastern Uruguay [PDF]
PeerJ, 2015 The Permo-Triassic archosauromorph record is crucial to understand the impact of the Permo-Triassic mass extinction on the early evolution of the group and its subsequent dominance in Mesozoic terrestrial ecosystems.
Martín D. Ezcurra +3 more
doaj +2 more sources