New ophthalmosaurid ichthyosaurs from the European Lower Cretaceous demonstrate extensive ichthyosaur survival across the Jurassic-Cretaceous boundary. [PDF]
BackgroundIchthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during ...
Valentin Fischer +9 more
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Change in community similarity (e.g., biotic homogenization) is regulated by different types of introduction and extinction events. However, the spatial patterns and potential drivers of these event types have not yet been addressed to date.
Xianping Li +3 more
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Diversification events and the effects of mass extinctions on Crocodyliformes evolutionary history [PDF]
The rich fossil record of Crocodyliformes shows a much greater diversity in the past than today in terms of morphological disparity and occupation of niches.
Mario Bronzati +2 more
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The terminal cretaceous extinction event
Die oorsake van massauitsterwings in die geologiese verlede bly nog 'n fassinerende onderwerp vir bespreking. Die moontlikheid van katastrofiese ekstraterrestriële oorsake word tans nog druk bespreek en wissel van supernova tot die wyd gepubliseerde ...
P.A.J. Ryke
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An extinction event in planktonic Foraminifera preceded by stabilizing selection. [PDF]
Unless they adapt, populations facing persistent stress are threatened by extinction. Theoretically, populations facing stress can react by either disruption (increasing trait variation and potentially generating new traits) or stabilization (decreasing ...
Manuel F G Weinkauf +3 more
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First evidence for a massive extinction event affecting bees close to the K-T boundary. [PDF]
Bees and eudicot plants both arose in the mid-late Cretaceous, and their co-evolutionary relationships have often been assumed as an important element in the rise of flowering plants. Given the near-complete dependence of bees on eudicots we would expect
Rehan SM, Leys R, Schwarz MP.
europepmc +2 more sources
Images of social support reminders, but not learned safety signals, reduce long-term fear [PDF]
Although previously considered to simply be a form of safety signals, reminders of social-support-figures have recently been shown to have a distinct combination of effects: inhibiting fear while present, like safety signals do, but also enhancing the ...
E. A. Hornstein +3 more
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De-extinction and poetry [PDF]
This article centres a poem concerned with the de-extinction of the thylacine (Tasmanian tiger) to make a wider claim for the importance of poetry as a distinct contribution to thinking about de-extinction.
Katrina Schlunke
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Role of degassing of the Noril'sk nickel deposits in the Permian-Triassic mass extinction event. [PDF]
Le Vaillant M +3 more
europepmc +2 more sources
Genomic and fitness consequences of a near-extinction event in the northern elephant seal. [PDF]
Hoffman JI +14 more
europepmc +3 more sources

