2016
DOI: 10.1016/j.cub.2016.04.014
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Palaeobiology: Born and Gone in Global Warming

Abstract: Why ichthyosaurs - marine Mesozoic reptiles - disappeared before the dinosaur extinction has remained a mystery. New research suggests they may have gone extinct stepwise, during one of the most extreme greenhouse periods in the history of complex life-forms.

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Cited by 3 publications
(4 citation statements)
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“…There are several marine vertebrate beds during those time periods but without marine reptiles, including those near the Smithian/Spathian boundary in Majiashan [43]. It is possible to analyse such presence/ absence of a taxon across geological formations, but its time resolution is low [29] and therefore unsuitable to our case (Material and methods).…”
Section: Discussionmentioning
confidence: 99%
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“…There are several marine vertebrate beds during those time periods but without marine reptiles, including those near the Smithian/Spathian boundary in Majiashan [43]. It is possible to analyse such presence/ absence of a taxon across geological formations, but its time resolution is low [29] and therefore unsuitable to our case (Material and methods).…”
Section: Discussionmentioning
confidence: 99%
“…The beds at Majiashan had been dated to the closest 0.1 Myr or finer, thanks to astrochronological cycles detected in carbon isotopes [27]. This temporal resolution is very high for Triassic fossils, given that most of them are only dated to geological substages, which are about 3 Myr long on average [29]. There are eight extensive outcrops in the area, repeatedly exposing the same sequence of the Lower Triassic that are continuous and complete.…”
Section: Materials and Methods (A) Stratigraphic Confidence Intervalmentioning
confidence: 99%
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“…Todas las revisiones sistemáticas de este linaje coinciden en que los registros más modernos del grupo corresponden al Cenomaniano (Cretácico Tardío) (Bardet 1992(Bardet , 1994McGowan y Motani 2003), aunque las causas de la extinción final del grupo siguen siendo objeto de debate (e.g. Motani 2016).…”
Section: Los Ichthyosauromorphaunclassified