Dinosaur blood discovered in fossilized bone by scientists
Scientists report finding rare evidence of fossilized red blood cells in a 115-million-year-old dinosaur bone.

Researchers report the discovery of rare evidence of blood cells inside a fossilized bone, marking a significant find regarding how organic material preserves over millions of years. According to reports published by various outlets including The New York Times and CNN, specialists claim this represents some of the best evidence yet that dinosaur blood can fossilize.
The material in question dates back 115 million years, according to The Guardian. While the discovery has generated considerable attention across publications like Popular Science and Science News, not everyone in the scientific community is convinced about the nature of the preserved structures.
Evaluating the Fossil Find
The debate centers on whether the structures found inside the ancient bone truly represent original biological material or if they are geological byproducts that mimic cellular structures. As highlighted by Science Daily, findings of this nature undergo intense scrutiny from researchers seeking to understand the limits of fossilization and the survival of soft tissues through deep time.
