On 10 September 2026, in the journal Current Biology a study was published on an unusual coprolite — fossilized excrement roughly 66 million years old, found in the Hell Creek Formation in Montana. Inside a small coprolite about 66 million years old (Hell Creek Formation, Montana), paleontologists discovered a remarkably well-preserved feather, the bones of an ancient waterbird from the hesperornithine group, and the scales of a fish — a gar, or armored pike.
The most likely scenario: a bird ate the fish, and a predatory dinosaur ate the bird (possibly a young Tyrannosaurus rex or Nanotyrannus), and then, 66 million years later, scientists found the whole thing. One of the researchers compared the find to a prehistoric “turducken” — a dish in which a chicken is roasted inside a duck, and the duck inside a turkey.
This is the first feather ever found inside a coprolite, and one of the best-preserved feathers of the Mesozoic. The find offers a rare glimpse of the food chain right before the asteroid impact and helps us better understand why some birds survived the mass extinction while others did not.
The most logical scenario looks like this:
a bird ate the fish, a predatory dinosaur ate the bird, and 66 million years later paleontologists found the whole thing.
That is precisely why one of the researchers compared the find to a prehistoric “turducken” — a dish in which a chicken is roasted inside a duck, and the duck inside a turkey.
Only here the version is simpler:
a fish inside a bird inside a dinosaur.
And all of it then ended up inside a coprolite.
Science really does know how to surprise.
Why the find matters
This is the first known feather found inside a coprolite.
What is more, it is so well preserved that it has become one of the finest specimens of Mesozoic feathers discovered in such a context.
The find offers a rare opportunity to look literally into the food chain of the end of the Cretaceous period — right before the mass extinction caused by the asteroid impact.
Researchers suggest that the coprolite may have belonged to a young large predatory dinosaur — possibly Tyrannosaurus rex or Nanotyrannus.
It is still difficult to establish the “author” with certainty, but the composition of the find itself already tells us a great deal.
The bird that did not have time to digest its dinner
What is especially interesting is that the bird itself, by all appearances, had quite recently eaten a fish.
That is, the dinosaur did not get just a bird.
It got a bird with a side dish.
And here paleontology suddenly turns into gastronomy.
But behind the joke there is serious science: such finds help us understand who ate whom, which birds lived alongside the dinosaurs, and why some groups managed to survive the catastrophe 66 million years ago while others disappeared.
Sometimes science writes jokes better than any editor.
Sometimes paleontology sounds as if someone is deliberately inventing a funnier plot.
But no — this is a real find
That is why the tiny coprolite turned out to be a genuine time capsule.
What was preserved in it was not just food.
But an entire sequence of events:
fish → bird → dinosaur → paleontologist.
After 66 million years, the chain has finally closed. 😄
