Jurassic Period Super-Sized Fleas Had Armored Mouthparts to Attack the Thick Hide of Dinosaurs

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The primitive ancestors of modern day fleas were built to drain the blood of dinosaurs, more than 150 million years ago, during the Jurassic period. This potential host-parasite relationship was recently uncovered thanks to a set of preserved fossils found in China.

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How the Holmzaden Ichthyosaur Sank Before the Cretaceous-Paleogene Extinction Event

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Paleontologist Alim Reisdorf and the co-authors of a new study published in the journal Paleobiodiversity & Paleoenvironments have been trying to figure out exactly how the Holmzaden ichthyosaurs sank and was preserved, right before the Cretaceous-Paleogene extinction pulse.

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