Did Earth’s ‘lost supercontinent’ ever exist? Scientists now question Pannotia’s reality |
Pannotia occupies an awkward position in Earth science. It is described in textbooks and review papers, yet its outline remains faint. The proposed supercontinent is said to have existed around 600 million years ago, before the better-known Pangea. For years, it offered a neat bridge between the breakup of Rodinia and the later assembly of…