Episode 412: Extinction Extravaganza – The Huge Dinosaur Podcast

Episode 412: Extinction Extravaganza. Proof of extinctions from volcanic rock, in craters, and even on the moon. Plus a brand new abelisaurid from Patagonia.


  • A brand new abelisaurid from Patagonia, Elemgasem, was small however named after a mighty Tehuelche god supply
  • Scientists recommended volcanic eruptions could possibly be the principle cause for mass extinctions supply
  • Scientists recommended dinosaurs had been on the decline earlier than they went extinct supply
  • The moon consists of proof of asteroid impacts on Earth supply
  • There’s a second underwater crater that’s from across the similar time as Chicxulub supply
  • A brand new mannequin exhibits the tsunami after the Chicxulub impression supply
  • The Chicxulub impression could have triggered an earthquake that lasted weeks to months supply
  • Precipitation performed a task within the abundance and success of hadrosaurs and ceratopsians within the Late Cretaceous in what’s now Alaska supply
  • Dinosaurs could have been profitable and numerous due to the variations of their diets supply
  • 80 million yr previous dinosaur eggs had been not too long ago present in Jiangxi Province, China supply
  • In Skåne, Sweden, giant carnivorous dinosaurs from the Late Triassic had been not too long ago discovered supply
  • Reykjavík is likely to be getting a Triceratops skeleton to show supply
  • To have a good time Nationwide Fossil Day, Mississippi State College’s Dunn-Seiler Museum had a contest to call their Triceratops supply
  • A person in New Zealand used VR to sculpt after which 3D print a life-sized mannequin of a Tyrannosaurus supply



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The dinosaur of the day: Brachytrachelopan

  • Dicraeosaurid sauropod that lived within the Late Jurassic in what’s now Chubut Province, Argentina (Cañadón Calcáreo Formation)
  • Comparable in form to different sauropods, walked on all fours, had a protracted tail, however had a brief neck
  • Estimated to be lower than 33 ft (10 m) lengthy
  • Had a brief neck, about 40% shorter than different dicraeosaurids (that are diplodocoids) and shorter than any identified sauropod
  • Dicraeosaurids are identified for his or her shorter necks
  • Quick necks could have helped with low searching
  • Most likely ate vegetation that grew to about 3 to six.5 ft (1 to 2 m) tall
  • May need stuffed the identical area of interest as giant iguanodontians, which weren’t round within the Late Jurassic in Gondwana, however there have been many giant iguanodontians throughout that point in what’s now North America (the place there have been no dicraeosaurids)
  • Helps present that dicraeosaurids had a fast radiation and actually unfold out within the Late Jurassic within the Southern Hemisphere, after Gondwana separated from the northern continents (within the Center Jurassic)
  • Named in 2005 by Oliver Rauhut and others
  • Kind species is Brachytrachelopan mesai
  • Species identify is in honor of Daniel Mesa, an area shepherd who discovered the dinosaur whereas in search of stray sheep
  • Genus identify means “short-necked Pan” and refers to Pan, the god of the shepherds
  • Fossils had been discovered articulated
  • Holotype consists of vertebrae, together with 8 neck vertebrae, a part of the ribs, a part of the decrease left leg and a part of the hip
  • Most likely had 12 neck vertebrae, like different dicraeosaurids
  • A number of the fossils had been most likely eroded away earlier than it was found
  • In a examine revealed final month, Guillermo Windholz and others did histology on Brachytrachelopan and located the holotype was not absolutely grown but, and although it was giant it was additionally not but sexually mature
  • Discovered the holotype specimen was at the least 4 years previous when it died
  • Different dinosaurs that lived across the similar time and place included abelisaurids, stegosaurs, and different sauropods like Tehuelchesaurus
  • Different animals that lived across the similar time and place included crocodylomorphs and fish

Enjoyable Truth:

The Pacific Ocean is shrinking and that will give rise to “Amasia”, Earth’s subsequent supercontinent

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