Ancient plant fossils that puzzled scientists have turned out not to be plants after all, new research has revealed. Instead, the small round shapes bearing a leaflike pattern were once the shells ...

This was odd; the fossils dated to the Early Cretaceous, but other members of this plant’s genus were thought to have died out more than 100 million years before that time.

Most foraminiferan species reside on the seafloor, but paleontologists are particularly interested in planktonic species, ...

Ancient plant fossils that puzzled scientists have turned out not to be plants after all, new research has revealed. Instead, the small round shapes bearing a leaflike pattern were once the shells ...