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Episode 484: A New Spinosaurid and a Spinosaurus Swimming Replace


Episode 484: A New Spinosaurid and a Spinosaurus Swimming Replace. The newest spinosaurid, Riojavenatrix lacustris, was once named from Spain; An replace at the swimming Spinosaurus debate; And a brand new mamenchisaurid was once named “Jingia”, however a moth has that title so it’s going to be renamed quickly.

Information:

  • There’s a brand new mamenchisaurid sauropod, “Jingia” dongxingensis, however it’s going to be renamed quickly supply
  • A brand new spinosaurid was once named from Spain, Riojavenatrix lacustris, the “L. a. Rioja huntress from the lake” supply
  • A brand new paper provides to the controversy on how spinosaurs hunted and if/how they swam supply

Sponsors:

You’ll dig up actual dinosaur bones this summer season with Colorado Northwestern Neighborhood School! Sign up for them for a two week immersive box paleontology enjoy digging up dinosaur bones from the Jurassic duration in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There also are two concurrent immersive lab ways methods to be had. Get all of the main points and check in on-line at cncc.edu/dinodig

The dinosaur of the day: Walgettosuchus

  • Tetanuran theropod that lived within the Overdue Cretaceous in what’s now New South Wales, Australia (Griman Creek Formation)
  • Doubtful genus
  • Best identified from one tail bone (caudal vertebra, close to the tip of the tail)
  • Laborious to grasp what it looks as if, in response to just a tail bone
  • However as a theropod, would have walked on two legs, had a protracted tail, and sharp tooth
  • Tail bone is ready 2.5 in (6.4 cm) lengthy
  • Tail bone is opalized
  • Fossil present in 1905 through Tullie Cornthwaite Wollaston, an opal broker, in Lightning Ridge, close to Walgett, in New South Wales, Australia
  • In brief described in 1910 through Arthur Woodward, after the fossil was once despatched to the British Museum of Herbal Historical past
  • Named in 1932 through Friedrich von Huene
  • Sort and most effective species is Walgettosuchus woodwardi
  • Genus title way “Walgett crocodile”
  • Species title in honor of Woodward
  • von Huene concept it was once a coelurosaur
  • In 1990, Ralph Molnar discovered that the fossil couldn’t be outstanding from tail bones in ornithomimids or megaraptorids, and concept it was once an indeterminate theropod and a nomen dubium
  • Might be synonymous, or the similar as, Rapator, a theropod that lived round the similar time and position, that von Huene additionally named in 1932 (fossil is an opalized left hand bone)
  • Don’t know needless to say if they’re the similar dinosaur, as a result of can’t examine from only a hand bone and a tail bone
  • Lived close to the coast through freshwater lagoons
  • Different dinosaurs that lived round the similar time and position come with the iguanodontian Fostoria, the ornithopod Weewarrasaurus, ankylosaurs, enantiornithes, megaraptorans, and sauropods
  • Different animals that lived round the similar time and position come with crocodyliformes, mammals, fish, pterosaurs, and turtles
  • Formation the place the dinosaur was once discovered has numerous opal

Amusing Reality:

We will have direct swimming proof of the brand new spinosaurid Riojavenatrix lacustris—the Rioja huntress from the lake (or it may well be from some other medium-sized theropod).

Thanks Consumers!

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