Triceratops - Episode 30
I Know Dino: The Big Dinosaur Podcast
I KNOW DINO, LLC
4.7 • 653 Ratings
🗓️ 22 June 2015
⏱️ 45 minutes
🧾️ Download transcript
Summary
Dinosaur news, including a new carnivore in Wales, how the T. rex cadaver for National Geographic's T. rex autospy show was made, dinosaur soft tissue, a history of dinosaurs in movies including Jurassic World, and more. Also, dinosaur of the day Triceratops, a ceratopsian similar to a modern rhinoceros.
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Transcript
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| 0:00.0 | This episode is brought to you by K-12-powered schools, tuition-free online accredited public schools for kindergarten through 12th grade. |
| 0:09.7 | Go to k-12.com slash IKD to find a tuition-free K-12-powered school near you and enroll now. |
| 0:17.0 | Music now. |
| 0:33.6 | Hello and welcome to I know Dino. I'm Garrett. |
| 0:34.5 | And I'm Sabrina. |
| 0:39.6 | And today we'll be talking about triceratops. Somehow we've made it to the 30th episode without using triceratops as a dinosaur of the day. And a lot of dinosaur news. So first in the |
| 0:46.2 | news is something that's actually in my wheelhouse as a chemical engineer. And it's about how |
| 0:52.8 | some paleontologists have looked at fibrous structures |
| 0:56.3 | that are actually fossilized. The article is published in nature communications, and it's |
| 1:01.9 | titled Fibers and Cellular Structures Preserved in 75 million-year-old dinosaur specimens, and |
| 1:08.9 | written by Sergio Bartazo and colleagues. |
| 1:12.8 | So in it they described discovering two different things in a few dinosaur bones, and they're |
| 1:18.2 | quick to point out that they're not exceptionally preserved fossils. |
| 1:22.5 | They're kind of average fossils. |
| 1:24.9 | What they did was they used different surface analysis techniques like scanning |
| 1:29.5 | electron microscopy and tunneling electron microscopy, which are both used at the micro to nanometer |
| 1:36.7 | scale to really get a detailed view of the surface of any kind of material. And then they use |
| 1:43.8 | something that's called Toff Sims, |
| 1:46.1 | which stands for a time of flight, |
| 1:48.4 | secondary ion mass spectrometry, |
| 1:50.9 | and they use that technique to analyze the exact composition |
| 1:54.9 | of the surface of the material. |
... |
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