I Know Dino Podcast Present Notes: Liliensternus (Episode 140)

I Know Dino Podcast Present Notes: Liliensternus (Episode 140)


Episode 140 is all about Liliensternus, a basal Neotheropod that lived within the Triassic in what’s now Germany.

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On this episode, we talk about:

Information:

  • New ornithomimid found in southern Mongolia, Aepyornithomimus tugrikinensis, described in Nature’s Scientific Studies
  • Two new research look into how briskly dinosaurs might (or couldn’t) run
    • Bishop et al. checked out people, trendy birds, and dinosaur tracks and decided they probably used “grounded working”
    • Sellers et al. used laptop fashions to simulate biomechanical stresses and located that T. rex wouldn’t have (aerial) run
  • The primary titanosaur with a number of pathologies (3 to be precise) was described in Cretaceous Analysis
  • Connecticut now has an official state dinosaur, Dilophosaurus
  • T-rex” and Sauropod emojis can be found on Fb and Twitter and can quickly be on iOS
  • Fossilized hadrosaur enamel have been discovered within the Nagasaki Prefecture in Japan and are on show till Sept. 18
  • The Virginia Museum of Pure Historical past in Martinsville, VA has a Triceratops on show with T. rex chunk marks
  • From now till September 3, London Zoo has robotic dinosaurs at their Zoorasic Park exhibit
  • The Westminster Assortment launched a pure gold plated T. rex coin with a skeleton that exhibits beneath UV mild
  • Singapore launched a brand new set of restricted version EZ-link playing cards with dinosaur prints

The dinosaur of the day: Liliensternus

  • Basal Neotheropod that lived within the Triassic in what’s now Germany
  • Discovered within the Trossingen Formation together with fossils of Ruehleia, a sauropodomorph, by Rely Hugo Rühle von Lilienstern, in 1932-1933
  • Hugo Rühle von Lilienstern was a depend, beginner paleontologist, and medical physician. He based a paleontological museum in his citadel in Bedheim, Germany in July 1934
  • Liliensternus specimens have been in Hugo Rühle von Lilienstern’s citadel till 1969, once they have been moved to the Humboldt Museum in Berlin
  • Liliensternus liliensterni is called after the depend
  • Liliensternus was initially assigned to Halticosaurus in 1934, as Halticosaurus liliensterni. Friedrich vone Huene named Halticosaurus in 1908, however now most bones considered Halticosaurus have been reassigned to different dinosaurs, together with Liliensternus
  • Sort species is now Liliensternus liliensterni
  • Gilles Cuny and Peter Galton described a brand new species, Liliensternus airelensis in 1993. However there have been extra variations discovered between Liliensternus airelensis and Liliensternus liliensterni, and in 2007 Martin Ezcurra and Cuny named it as a brand new genus, Lophostropheus
  • Samuel Paul Welles present in 1984 that Halticosaurus longotarsus, the kind species of Halticosaurus, was a nomen dubium. Most descriptions of Halticosaurus have been about Halticosaurus liliensterni, so Welles named the brand new genus Liliensternus in 1984
  • A left metatarsal present in 1834 was later assigned to Liliensternus (first considered a handbook or pedal aspect in 1855, then in 1908 considered a pubic fragment of Plateosaurus, then re-identified as a part of Liliensternus in 2003
  • Extra bones present in 1961 have been referred to Liliensternus in 1992 by Sander (present in Switzerland)
  • Specimens discovered might have been a juvenile or subadult
  • Two specimens discovered (components of cranium, decrease jaws, vertebrae, tibia, femur)
  • As much as 17 ft (5 m) lengthy, and weighed 280 lb (127 kg), although some estimate it to weigh as much as 441 lb (200 kg)
  • May very well be an intermediate between Coelophysis and Dilophosaurus
  • Tibia is shorter than femur (similar to Dilophosaurus)
  • Could have had a crest, like Dilophosaurus, however cranium just isn’t well-known
  • Additionally has a brief hip bone (ilium) like Dilophosaurus
  • In 1989 Rowe mentioned that Liliensternus was extra derived than Dilophosaurus
  • Bipedal carnivore
  • Could have preyed on Plateosaurus, a basal sauropodomorph that lived across the similar time and place
  • Was in all probability quick, and will catch ornithischians, and will use its enamel to slash and wound prosauropods, like Plateosaurus
  • In all probability lived on floodplains together with reptiles and therapsids (which gave rise to mammals)

Enjoyable Truth:

“Transitional” (fossil) is a deceptive time period

Revealed in Palaeontologia Electronica By Mario Bronzati

“Transitional” implies some sort of design or desired evolutionary path

  • Evolution is totally random
  • Hindsight bias makes issues look transitional
  • Implies that we’re discovering lacking hyperlinks, however evolution isn’t a straight path
    • It’s like a shrub with tons of dead-ends far and wide
  • It’s additionally used inconsistently, which gaps have transitional fossils?
  • Bronzati recommends “bridging gaps” relatively than discovering “transitional taxons”



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