The group is Cretaceous, outside Neornithes, and a good rounded reference point for early records is about 90 million years ago.
STORY
Hesperornithiformes Birds Emerge (Now Extinct)
By Michael Alan Prestwood
Sun 15 Mar 2026
Published 1 day ago.
Updated 1 day ago.
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Hesperornithiformes Birds Emerge (Now Extinct)
~90 Million years ago.
— map / TST —
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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