Episode 493: T. rex Intelligence and Kallie Moore from PBS Eons

Episode 493: T. rex Intelligence and Kallie Moore from PBS Eons. Tyrannosaurus rex and different dinosaur brains didn’t fill their complete cranium. Plus Kallie Moore joins from the implausible YouTube channel PBS Eons and stocks how the venture began and the way it’s going.


  • T. rex was once no longer just about as good as a baboon, in step with a brand new learn about of dinosaur intelligence in line with mind measurement and neuron counts supply


Kallie Moore, the Collections Supervisor/Fossil Librarian on the College of Montana Paleontology Middle, co-host of the YouTube channel PBS Eons, and government manufacturer for the documentary Why Dinosaurs? Practice her on Instagram @fossil_librarian


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The dinosaur of the day: Xiaosaurus

  • Ornithischian dinosaur that lived within the heart Jurassic in what’s now Sichuan, China (Xiashaximiao Formation)
  • Herbivorous, and frivolously constructed
  • At the small facet for a dinosaur
  • Estimated to be about one meter lengthy (over 3 feet)
  • Femur (thighbone) is 11 cm (4.3 in) lengthy
  • Walked on two legs, had a protracted tail, quick palms, muscular legs, had a small head
  • Had leaf-shaped enamel
  • Two folks present in 1979 and 1980
  • Named in 1983 by means of Dong Zhiming and Tang Zilu
  • Sort species is Xiaosaurus dashanpensis
  • Genus identify Xiaosaurus way “first light lizard”
  • Genus identify refers back to the age of the dinosaur
  • Species identify refers to Dashanpu, the township close to the place the fossils have been discovered
  • Holotype is a partial skeleton with a jaw fragment with a enamel, neck and tail bones, an higher arm bone, a partial left thighbone, and a whole proper leg
  • 2nd skeleton discovered features a proper thighbone, vertebrae, a phalanx (finger or toe bone), a rib, two enamel
  • Peng Guanzhao reclassified Agilisaurus multidens as Xiaosaurus multidens in 1992, however this wasn’t authorized
  • Xiaosaurus multidens later become Hexinlusaurus
  • Too fragmentary to simply categorized, and from time to time regarded as a nomen dubium. A 2005 learn about discovered it to be legitimate and to be Ornithischia incertae sedis (so some kind of ornithischian)
  • Lived in a lush woodland
  • Different dinosaurs that lived round the similar time and position come with ornithischians like Hexinlusaurus and Agilisaurus, sauropods comparable to Abrosaurus, Dashanpusaurus, Omeisaurus (recognized for its in reality lengthy neck), Shunosaurus (recognized for having a tail membership), theropods such because the megalosaurids Kaijiangosaurus and Leshansaurus (and lots of different sorts of theropods), stegosaurs like Bashanosaurus and Huayangosaurus (had pointy spikes on their backs)
  • Different animals that lived round the similar time and position come with fish, amphibians, turtles, crocodiles, and pterosaurs
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Amusing Truth:

A brand new “titan” reptile was once simply named from the Triassic, but it surely’s no longer a titanosaur. It’s the “titanic fish” Ichthyotitan, which could have been the dimensions of a blue whale!

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