And because therapsids are the ancient ancestors of ... The discovery of this new fossil is another piece of the puzzle for how mammals evolved.' ...

“There is a big time gap in the fossil record of therapsids, between when they are predicted to have evolved based on our knowledge of relationships of synapsids (a larger vertebrate group that ...

However, the therapsids still had important features ... Now, a team of scientists have found a new fossil that is the oldest of its kind and might even be the oldest therapsid ever discovered.

But the new fossil is dated to between 270 and 280 million ... millions of years changes scientists’ understanding of when therapsids evolved, an important milestone on the way to the emergence ...