Here’s something fun that pterosaurs had in common with non-avian dinosaurs and modern birds: They regurgitated gastric pellets.
Picture it: Two hungry pterosaurs, one adult and one juvenile, settle down to dig in to a delicious lunch of fish. Down their gullets the whole fish go. A little later, back up come the scales and other indigestible fishy bits, vomited neatly as millimeter-sized pellets.
Scientists now have the first fossilized evidence that pterosaur dining included a final course of regurgitation, scientifically called antiperistalsis. While studying two specimens of, a pterosaur species that lived in what is now China between 199 million and 146 million years ago, researchersPhilosophical Transactions of the Royal Society BThat pterosaurs gave those inedible bits the old heave-ho isn’t a surprise.
Based on the size of the scales in the larger pellet, found next to the adult, the fish it was eating was much larger than most fish fossils found at the site, the researchers note. That suggests that rather than opportunistically scavenging any fish that washed up onshore,Questions or comments on this article? E-mail us at
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