Researchers identified heme, an iron-carrying organic molecule involved in oxygen transport by haemoglobin, in hind leg bones of an Aratasaurus. The small meat-eating dinosaur lived in what is now northeastern Brazil about 115 million years ago; the finding adds to research on soft tissues preserved in ancient fossils.
Reporting from 2 identified publishers across this event arc.
These publishers contributed reporting to the broader event history. Not every source addresses the specific development described above.
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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