The origin and diversification of pteropods precede past perturbations in the Earth's carbon cycle.

Proc Natl Acad Sci U S A · 2020 · PMC7568333 · PMID 32973093

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a clear trendno p-value reported

We do not see a clear trend toward gradual loss of shells in our phylogeny, though shelled groups have earlier origins than unshelled ones.

also in 19,460 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.