Weekly Insights for Thinkers

STORY

Hesperornithiformes Birds Emerge (Now Extinct)

By Michael Alan Prestwood

Sun 15 Mar 2026
Published 1 day ago.
Updated 1 day ago.
Related Stories
Proceratosaurus (T.Rex ancestor)
Bird-line Archosaurs: Asilisaurus kongwe (within Ornithodira)
Stegosaurus
Sauropodomorph Line Diverges Within Dinosaria (from Saurischia)
Theropod Line Diverges Within Dinosaria (from Saurischia)
Confuciusornithiformes Birds Emerge (Now Extinct)
Share :

Hesperornithiformes Birds Emerge (Now Extinct)

~90 Million years ago.

The group is Cretaceous, outside Neornithes, and a good rounded reference point for early records is about 90 million years ago.

— map / TST —

Michael Alan Prestwood
Author & Natural Philosopher
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.
This Week @ TST
March 11, 2026
»Edition Archive
WWB Research….
1. Story of the Week
Galileo: Observation Corrects the Map
2. Quote of the Week
“The Dao that can be told is not the eternal Dao; The name that can be named is not the eternal name.”
3. Science FAQ »
Is red an empirical idea?
4. Philosophy FAQ »
Does infinity exist?
5. Critical Thinking FAQ »
Was math discovered or invented?
6. History FAQ!
Is Philo’s interpretation related to the split in the Idea of Ideas?
Bonus Deep-Dive Article
TST Metaphysical Position: The Split
Scroll to Top