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

Mammals, birds, and flowers originated 130 to 200 million years ago.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 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 Mammals, birds, and flowers originated 130 to 200 million years ago?

Yes. The origin of mammals, birds, and flowering plants (angiosperms) is well-supported by paleontological and phylogenetic evidence to have occurred during the Mesozoic era, spanning roughly 130 to 200 million years ago.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The retrieved papers document the Mesozoic roots of mammals (Late Triassic/Jurassic), birds, and angiosperms (Cretaceous), placing their origins comfortably within the claimed 130 to 200 million year range.

Evidence for · 4
Integrated phylogenomic and fossil evidence of stick and leaf insects (Phasmatodea) reveal a Permian-Triassic co-origination with insectivores.
2020
This study discusses the Cretaceous Terrestrial Revolution and the radiation of angiosperms and avian lineages within the relevant timeframe.
Get citation
E, T., C, C., M, G., D, P., & PCJ, D. (2020). Integrated phylogenomic and fossil evidence of stick and leaf insects (Phasmatodea) reveal a Permian-Triassic co-origination with insectivores.. doi.org. https://doi.org/10.1098/rsos.201689

See more details
More for · 3
The stepwise rise of angiosperm-dominated terrestrial ecosystems.
2025
Angiosperms underwent rapid divergence and biogeographic expansion from the early to middle Cretaceous, falling squarely within the 130 to 200 million year window.
Get citation
W, D., D, S., RE, O., M, W., Z, Z., & Y, X. (2025). The stepwise rise of angiosperm-dominated terrestrial ecosystems.. doi.org. https://doi.org/10.1111/brv.70039

The Mesozoic mammals
2004
Mesozoic mammals date back to the Late Triassic (over 200 million years ago) and persisted throughout the 145 million years of the Mesozoic.
Get citation
Kemp, T. (2004). The Mesozoic mammals. doi.org. https://doi.org/10.1093/oso/9780198507604.003.0008

New fossils imply a deeper origin of modern birds in the Mesozoic.
2025
Fossil and genomic evidence supports a Mesozoic and Cretaceous origin for modern bird lineages and flowering plants.
Get citation
Wu, S., Tao, Z., Liu, L., Marshall, C. R., Edwards, S. V., Zhou, Z., & Rheindt, F. E. (2025). New fossils imply a deeper origin of modern birds in the Mesozoic.. doi.org. https://doi.org/10.1093/nsr/nwaf238

What does the evidence say?

The retrieved papers document the Mesozoic roots of mammals (Late Triassic/Jurassic), birds, and angiosperms (Cretaceous), placing their origins comfortably within the claimed 130 to 200 million year range.

Receipt History
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