trustmebro.to/r/…
✓ checked
trust me, bro:
here is the receipt.
the claim

An asteroid impact caused the Cretaceous-Paleogene extinction of the dinosaurs

the verdict
CONTESTED
the evidence cuts both ways
Recorded sources
2 sources for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that an asteroid impact caused the Cretaceous-Paleogene extinction of the dinosaurs?

Partly. While the vast majority of scientific literature and consensus attributes the Cretaceous-Paleogene extinction of the dinosaurs to the Chicxulub asteroid impact, a small number of dissenting studies and researchers argue that the impact predates the extinction or that volcanism was the primary driver.

Verdict: CONTESTED · 2 sources for, 2 against · Last checked

The analysis

The claim is a specific, empirical, and contestable scientific hypothesis that passes Step 0. The retrieved literature shows a division: papers [0] and [5] support the asteroid impact model as the main driver of the Cretaceous-Paleogene extinction, while papers [10] and [11] argue against it based on stratigraphic timing anomalies and advocate for volcanism. Because prominent recent papers and broader consensus heavily favor the asteroid impact model, but direct challenges exist in the provided set, the literature is balanced with strong support for the claim alongside documented dissent, though the overall weight of mainstream scientific consensus (supported by high-quality recent modeling like paper [0]) supports the verdict of SUPPORTED (or CONTESTED if weighing dissent equally, but strict evidence evaluation of the field heavily favors the impact).

Evidence for · 2
Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction.
2020
Combines fossil-occurrence data with paleoclimate models to show that asteroid impact generated a prolonged cold winter suppressing dinosaur habitats, supporting it as the main extinction driver.
Get citation
AA, C., A, F., PD, M., DJ, L., PJ, V., JV, M., & PA, A. (2020). Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction.. doi.org. https://doi.org/10.1073/pnas.2006087117

Evidence against · 2
The Cretaceous–Tertiary Mass Extinction
2011
Argues that impact evidence predates the KTB mass extinction and revives the Deccan volcanism hypothesis.
Get citation
Keller, G. (2011). The Cretaceous–Tertiary Mass Extinction. doi.org. https://doi.org/10.2110/sepmsp.100.007

See more details
More for · 1
The end-Cretaceous plant extinction: Heterogeneity, ecosystem transformation, and insights for the future.
2023
Reviews paleobotanical evidence confirming profound species losses from the Chicxulub impact at the K-Pg boundary.
Get citation
P, W., MR, C., & E, S. (2023). The end-Cretaceous plant extinction: Heterogeneity, ecosystem transformation, and insights for the future.. doi.org. https://doi.org/10.1017/ext.2023.13

More against · 1
The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas
2011
Reports undisturbed Texas sections where the primary impact spherule layer is found hundreds of thousands of years before the mass extinction.
Get citation
The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas. (2011). doi.org. https://doi.org/10.2110/sepmsp.100

Related receipts
Receipt History
first checked05 Aug 2026
judged → CONTESTED · 3305 Aug 2026
Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.
Check your own claim
Challenge the receipt
Requests are recorded for review. This does not start an automatic check or guarantee a response time.

See the evidence timeline

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work