Skip to content
Home » Episode 412: Extinction Extravaganza – The Huge Dinosaur Podcast

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 steered volcanic eruptions may very well be the primary motive for mass extinctions supply
  • Scientists steered dinosaurs have 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 identical time as Chicxulub supply
  • A brand new mannequin exhibits the tsunami after the Chicxulub influence supply
  • The Chicxulub influence could have triggered an earthquake that lasted weeks to months supply
  • Precipitation performed a job 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 have been not too long ago present in Jiangxi Province, China supply
  • In Skåne, Sweden, massive carnivorous dinosaurs from the Late Triassic have been not too long ago discovered supply
  • Reykjavík may be getting a Triceratops skeleton to show supply
  • To have fun 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



We’re headed to the 2022 Society of Vertebrate Paleontology annual assembly very quickly! Get premium content material solely out there to our patrons and assist us make it to SVP by becoming a member of us on Patreon. Our patrons’ beneficiant contributions make our podcast doable! Now you can save 10% by paying yearly. Go to to enroll and assist us maintain creating I Know Dino each week.

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 recognized sauropod
  • Dicraeosaurids are recognized for his or her shorter necks
  • Brief necks could have helped with low searching
  • In all probability ate crops that grew to about 3 to six.5 ft (1 to 2 m) tall
  • May need crammed the identical area of interest as massive iguanodontians, which weren’t round within the Late Jurassic in Gondwana, however there have been many massive 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 on the lookout for stray sheep
  • Genus identify means “short-necked Pan” and refers to Pan, the god of the shepherds
  • Fossils have 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
  • In all probability had 12 neck vertebrae, like different dicraeosaurids
  • A lot of the fossils have been in all probability 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 massive 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 identical time and place included abelisaurids, stegosaurs, and different sauropods like Tehuelchesaurus
  • Different animals that lived across the identical time and place included crocodylomorphs and fish

Enjoyable Reality:

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

Thanks Patrons!

Your assist means a lot to us and retains us going! For those who’re a dinosaur fanatic, be a part of our rising group on Patreon at

Leave a Reply

Your email address will not be published. Required fields are marked *