I Know Dino: The Big Dinosaur Podcast cover image

The first long-necked dinosaur

I Know Dino: The Big Dinosaur Podcast

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The Origins of Skeletal Pneumaticity in Bones

Pneumatic, pneumatized bones are a dinosaur feature that birds inherited from their ancestors. Scientists examined the bones of three late Triassic dinosaurs dating to about 233 million years ago. Theropods and sauropods must have evolved this later on in their evolutionary trajectory,. Which would mean that it's not a feature of the earliest dinosaurs.

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