Dinosaurs on Instagram: "the Cretaceous– Paleogene extinction event was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago. With the exception of some ectothermic species such as sea turtles and crocodilians, no tetrapods weighing more than 25 kilograms survived. Also working on a colab with sounds, check out @sean.odhran ➖ 𝒄𝒓𝒆𝒅𝒊𝒕 @paleo.parallax #tyrannosaurus #dinosaur #paleontology #dinosaurjr #world #illustratör #giga