Scientists discovered the first fossilized egg with an embryo of Lystrosaurus, an ancestor of mammals that sur! Swipe to see →
In a microanalysis room at the University of Witwatersrand in Johannesburg, South Africa, paleontologist Kimi Chapelle positioned a 7-cen...
The study, published in the journal PLoS ONE on April 15, 2026, describes the first fossilized egg containing an identifiable embryo of L...
Lystrosaurus occupies a peculiar place in the history of life on Earth. It belongs to the clade Synapsida — the group that includes all m...
The discovery has profound implications for understanding mammal evolution and the reproductive biology of the ancestors of the animals t...
"This is the kind of discovery that happens once in a career," said Dr. Kimi Chapelle, the study's first author, during a press conferenc...
Chapelle's team plans to expand research in several directions:
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