Monday, December 15, 2025

World’s oldest mammalian ancestor discovered

Gorgonopsians are an extinct group of synapsids.

An international team of researchers led by the Institut Català de Paleontologia Miquel Crusafont (ICP) and the Museu Balear de Ciències Naturals (MUCBO | MBCN) has made an extraordinary discovery: a fossilized creature that roamed the Earth between 270 and 280 million years ago, in what is now Mallorca. This finding is remarkable not only due to the abundance of fossil remains uncovered but also because it marks the earliest known gorgonopsian on the planet—a lineage of saber-toothed predators that played a crucial role in the evolution of mammals.

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