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Episode 396: How T. rex was discovered and the way it modified paleontology


Episode 396: How T. rex was discovered and the way it modified paleontology. David Randall creator of “The Monster’s Bones: The Discovery of T. rex and How It Shook Our World” joins us to debate T. rex, Barnum Brown, Henry Fairfield Osborn, and the way they helped form our notion of paleontology.

You may take heed to our free podcast, with all our episodes, on Apple Podcasts at: https://itunes.apple.com/us/podcast/i-know-dino/id960976813?mt=2

Interview:

David Randall, a senior reporter at Reuters and the creator of a number of books, together with “The Monster’s Bones: The Discovery of T. rex and How It Shook Our World”. Comply with him on twitter @dkrandall

Sponsors:

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The dinosaur of the day: Draconyx

  • Styracosternan ornithopod that lived within the Late Jurassic in what’s now Portugal (Lourinhã Formation)
  • Regarded type of like Iguanodon, with a cumbersome physique and quick arms and lengthy tail
  • Comparatively small, in comparison with family, bipedal, and a presumably a quick runner
  • Estimated to be between 9.8 to 13.1 ft (3 and 4 m)
  • Herbivorous
  • Had leaf-shaped denticles (serrations on the enamel)
  • Had lengthy, claw-like unguals on its palms, however didn’t have a spike thumb
  • Had gracile toes
  • First toe was shorter and fewer strong than different toes
  • Sort species is Draconyx loureiroi
  • Present in 1991, and housed within the collections of the Museu da Lourinhã
  • Described in 2001 by Octávio Mateus and Miguel Telles Antunes
  • Genus identify means “dragon claw”, and refers back to the claw materials discovered
  • Species identify is in honor of João de Loureiro, a priest and pioneer in paleontology in Portugal
  • Filippo Rotatori and others reevaluated Draconyx in 2022
  • Described unreported forelimb materials of the holotype, and redescribed the holotype
  • CT scanned the fossils
  • Carlos Anunciação, who found the dinosaur had extra holotype materials in his assortment at house, and not too long ago donated to the museum
  • Considered a camptosaurid, now thought-about to be a styracosternan iguanodontian (others embrace Camptosaurus, Iguanodon, Mantellisaurus, which had been a lot bigger)
  • Holotype features a partial skeleton, no cranium (contains two enamel, chevron, a part of the humerus, astragalus or ankle bone, metatarsals or foot bones, the forelimb, and extra)
  • Holotype about 30 years outdated, based mostly on histology (thought-about to be a senile particular person)
  • Left femur later referred to Draconyx, however then referred to Ankylopollexia indet.
  • Primarily based on histology from a 2017 examine by Katja Waskowa and Octavio Mateus, holotype specimen was between 27 and 31 years outdated
  • One of many oldest species of Styracosterna, which can imply Styracosterna originated in Europe
  • Potential that basal styracosternans had been bipedal and quick runners, then later turned greater and quadrupedal
  • Different dinosaurs that lived across the similar time and place embrace the carcharodontosaur Lusovenator and the ankylosaur Dracopelta

Enjoyable Reality:

Barnum Brown was named after Phineas Taylor (P.T.) Barnum, identified for founding the Barnum & Bailey Circus, however Barnum Brown was additionally given the nickname “Mr. Bones” as a result of he was so good at discovering fossils.

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