The gang talk about two papers about extraordinary dinosaur fossils and the unique information that can be gleaned from them. The first paper looks at fossil skin data on a Cretaceous iguandodontian, and the second paper uses an exceptionally complete specimen to demonstrate the reality of Nanotyrannus. Meanwhile, James classifies, Amanda imagines T-rex, and Curt brings a unique energy.

Up-Goer Five (Curt Edition):

The friends look at two papers about big angry animals that everyone loves to talk about. The first paper is about the skin of one of these big angry animals. This skin has weird bits on it that are not like the weird bits we see in a lot of other animals that are close to these big angry animals. These bits do not look like the bits that would be used to stay warm or to move into the air. These bits look like they might hurt. The second paper looks at a lot of stuff from one big angry animal that has been said by people in the past is just a young one of another big angry animal. The paper looks at the parts of this animal, how this animal grew, and a lot of other things to show that, no, this animal is not this other animal. This animal is its own type of animal.

References:

Huang, Jiandong, et al. "Cellular-level preservation of cutaneous spikes in an Early Cretaceous iguanodontian dinosaur." Nature Ecology & Evolution (2026): 1-8.

Zanno, Lindsay E., and James G. Napoli. "Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous." Nature (2025): 1-3.