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HomeDinosaurI Know Dino Podcast Present Notes: Tuojiangosaurus (Episode 243)

I Know Dino Podcast Present Notes: Tuojiangosaurus (Episode 243)

Episode 243 is all about Tuojiangosaurus, a dinosaur that resembles Stegosaurus with thinner plates.

We additionally interview Jen Bauer, a postdoctoral affiliate on the Florida Museum of Pure Historical past, with a concentrate on the myFOSSIL challenge and the Thompson Institute for Earth Programs. She can be the co-creator, together with Adriane Lam, of Time Scavengers

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On this episode, we focus on:


  • Aquilarhinus, the brand new hadrosaur from Texas with a shovel invoice and an eagle nostril supply
  • A big group of opalized dinosaur fossils have been present in Lightning Ridge, Australia supply
  • The lawsuit over the dueling dinosaurs is now on the Montana Supreme Courtroom supply

The dinosaur of the day: Tuojiangosaurus

  • Stegosaurid that lived within the Late Jurassic, in what’s now Sichuan Province, China (Higher Shaximiao Formation)
  • About 23 ft (7 m) lengthy, and about 2.8 tonnes (Gregory Paul estimated 2.8 tonnes for a specimen about 21 ft (6.5 m) lengthy)
  • Described in 1977 by Dong Zhiming and others, however the description was largely of traits that different stegosaurs had
  • Peter Galton wrote about an autapomorphy in 1990 (pairs of spines on the base of the tail, the thagomizer, had bony skirts that ran from the entrance to the edges)
  • Had two spikes that identified from the tip of the tail (thagomizer), although Dong thought there could have been 4 spikes. Gregory Paul described them as a “pin-cushion array” with two vertical pairs of spikes and one other pair of spikes that pointed behind
  • Had rows of plates on the backbone, the tallest ones across the hip space
  • Plates close to the neck and the entrance of the physique have been rounded, plates close to the again have been extra pointy and triangular
  • The plates have been formed in a method that appeared like modified spikes
  • Dong estimated 17 pairs of plates and spikes
  • Had a slender, low head
  • Had a cumbersome physique
  • Had brief limbs, particularly the forelimbs
  • Ate floor vegetation and doubtless saved its head near the bottom (had enamel higher for mushy vegetation)
  • Fossils have been present in 1974, throughout development of a dam in Zigong, Sichuan
  • Sort species is Tuojiangosaurus multispinus
  • Title means “Tuo River Lizard”
  • Species title means “many spines”
  • Discovered two specimens initially (extra specimens have since been referred to Tuojiangosaurus, together with juveniles)
  • Holotype is usually full, however lacking elements of the cranium, decrease jaws, tail, and limbs (when it was described, it was essentially the most full stegosaur skeleton present in Asia)
  • Sister taxa to Stegosaurus
  • Can see Tuojiangosaurus mount on the Municipal Museum of Chongqing, in China, and one other mount on the Beijing Museum of Pure Historical past (preventing a Yangchuanosaurus)
  • May also see a Tuojiangosaurus solid on the Pure Historical past Museum in London

Enjoyable Reality: There’s a formation of cretaceous rock bigger than Montana in central Africa that’s utterly unexplored.



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