Episode 517: Did Dinosaurs Survive after the Asteroid?


Episode 517: Did Dinosaurs Survive after the Asteroid?. This episode is all about answering listener questions! Ranges from did non-avian dinosaurs reside previous the Okay-Pg in what’s now New Zealand? Additionally the right way to survive the Mesozoic, would you go to an actual life Jurassic Park, what dinosaurs would win “finest in present”, plus two dinosaur books which are nice references.

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The dinosaur of the day: Albertadromeus

  • Albertadromeus, my decide for one of the best dinosaur meal (may additionally see it being a probably good pet)
  • Thescelosaurid dinosaur that lived within the Late Cretaceous in what’s now Alberta, Canada (Oldman Formation)
  • Lived about 77 million years in the past
  • Regarded just like Oryctodromeus, an in depth relative
  • Small, walked on two legs
  • Had a protracted tail and a brief head
  • Estimated to be about 1.6 m (5 ft) lengthy and weigh about 16 kg (30 lb)
  • Had a protracted shin, so most likely was a quick runner
  • A part of the calf bone is fused to the shin bone
  • Having the 2 fused decrease leg bones would have helped it run quick
  • Smallest identified herbivore in its habitat
  • Perhaps ran away from predators as its foremost protection
  • Sort and solely species is Albertadromeus syntarsus
  • Fossils present in 2009
  • Holotype features a couple again bones, a tail bone, elements of the ribs, ossified tendons, the left tibia and fibula (shin and calf bones), an incomplete proper fibula, and elements of the foot
  • Options within the shin bone make it distinctive
  • No cranium discovered
  • Described in 2013 by Caleb Brown and others
  • Genus title means “Alberta runner”
  • Species title means “collectively ankle” and refers to how the calf bone and shin bone is fused
  • Helps present extra variety within the Oldman Formation
  • Smaller dinosaurs have a tendency to not be preserved as usually as bigger ones (bones are extra delicate and simply destroyed, plus they’re tougher to seek out even after they do fossilize)
  • When Albertadromeus was named, Brown and others additionally named a brand new subfamily, Orodrominae, for thescelosaurids extra intently associated to Orodromeus than Thescelosaurus (group consists of Oryctodromeus)
  • Thescelosaurids are neornithischians that lived within the Early to Late Cretaceous in Asia and North America. A couple of of them are identified to be burrowers
  • Lived on an historic coastal plain
  • Different dinosaurs that lived across the identical time and place embrace theropods like Daspletosaurus and Troodon, ceratopsids like Albertaceratops and Chasmosaurus, and hadrosaurs like Parasaurolophus and Maiasaura

Enjoyable Reality:

New Zealand isn’t the one space the place scientists as soon as thought of non-avian dinosaurs might need survived previous the Okay-Pg.

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