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I Know Dino: The Big Dinosaur Podcast

Dinosaur Growth!

Yesterday · 1 hr 8 min · Episode 571 · 66.0 MB
0:00-1:08:46

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Tyrannosaurus hatchlings; Tyrannosaurus took 40 years to reach full size; Some dinosaurs grew really fast and some were incredibly slow; Growth affects how much dinosaurs need parental care; A listener question about how sauropod diets changed as they grew; And a whole lot more dinosaur growth research

For links to every news story, all of the details we shared about Tambatitanis, and our fun fact check out https://iknowdino.com/Tambatitanis-Episode-571/

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Dinosaur of the day Tambatitanis, a titanosauriform from Japan named after the friendship between the two people who found the dinosaur.

In dinosaur news this week:

  • There’s a new titanosauriform dinosaur, Dasosaurus tocantinensis
  • When estimating how dinosaurs grew, some models may be missing important data points
  • Dinosaurs were likely thicker and heavier than previously estimated
  • How much did climate affect dinosaur body size evolution? It’s hard to say
  • Scans of Early Triassic archosauromorph fossils show that this group had a variety of growth strategies from the beginning
  • How scales grow as dinosaurs grow can give us some information on how they lived
  • Tyrannosaur hatchlings may have left the nest shortly after hatching to hunt
  • It took Tyrannosaurus rex 40 years to reach its full size
  • Ceratosaurus grew more than 9 times faster than some of its fellow ceratosaurs
  • The basal ornithopod Changchunsaurus was one of the slowest growing dinosaurs (that we know of)
  • Maiasaura grew in a way that it needed a lot of parental care as a hatchling
  • The hadrosaur Gryposaurus grew (mostly) isometrically (meaning everything grew at the same rate)
  • The small iguanodont Dysalotosaurus had some interesting fused bones in its neck
  • A new, tiny, young sauropodomorph sheds light on how early dinosaurs grew
  • The titanosaur Neuquensaurus grew quickly, but differently than expected


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