Hadrosaur Hooves, Head Combs, Muscles, and More Soft Tissues

I Know Dino: The Big Dinosaur Podcast

I KNOW DINO, LLC

Iknowdino, Science, Dinosaurs, Dinosaur Podcast, Earth Sciences, Dinosaur, Natural Sciences, Education

4.7 • 653 Ratings

🗓️ 17 April 2026

⏱️ 67 minutes

🔗️ Recording | iTunes | RSS

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Summary

Lots of new discoveries of soft tissues in dinosaurs. Plus new studies to confirm old soft tissues and a new—controversial—iguanodont.

For links to every news story, all of the details we shared about Santanaraptor, and our fun fact check out https://iknowdino.com/Santanaraptor-Episode-563/

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Dinosaur of the day Santanaraptor, a small theropod found with soft tissue.

In dinosaur news this week:

There’s a potentially new iguanodont, Paulodon galvensis (but it is controversial)
Soft tissues can be preserved in fossils regardless of the species, age of the bones, or where the animal was buried
A new method using Cross-polarized light microscopy (XPol) helps identify organic molecules in fossils
New Edmontosaurus "mummies" show hooves, small spikes down the tail, and a banded fleshy crest over the neck and back
Scientists re-evaluated the soft tissue crest of an edmontosaur hadrosaur dinosaur
Dinosaurs likely had muscles forming cheeks
New titanosaur sauropod tracks found in Mongolia show a lot of soft tissue details in the hands and feet

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Transcript

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0:00.0	Hello and welcome to I Know Dino.
0:08.8	Keep up with the latest dinosaur discoveries and science with us.
0:12.0	I'm Garrett.
0:12.6	And I'm Sabrina.
0:13.5	And today in our 563rd episode, we've got another theme.
0:19.0	Oh, yes.
0:19.9	Well, first we have a potentially new iguanadot, and our theme is soft tissues found in dinosaur fossils.
0:26.3	So we talk about how we can tell that they're soft tissues and not bacteria, plus had dinosaur dinosaur, quote-unquote, mummies that had hooves and a spiky tail, another hadrosaur that had a soft tissue comb on its head,
0:39.5	and there's a newly discovered muscle in dinosaur cheek regions.
0:43.4	Wow, that's some good stuff.
0:44.8	It is.
0:45.4	I love soft tissues, because we're all used to what the bones look like, but rarely do we get to see the other parts.
0:51.2	Yeah, like combs.
0:52.5	Yeah, a spiky tail sounds very cool. We also have
0:56.3	Dinosaur of the Day, Santanaraptor, which is a small theropod found with soft tissue. And
1:01.4	our fun fact, that paleontologists have found the first evidence of color in a sauropod dinosaur,
1:07.4	and it may have been red. Hmm. Mm-hmm.
1:13.7	Maybe we should have made our Bajosaurus patch red.
1:14.2	Maybe.
1:16.4	But we didn't read last year.
1:16.9	That's true.
1:20.1	And really, what's more important?
	...

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