3 ms·

What does MYa mean? I thought it meant million years ago,but he writes "400MYa ago" and "200Mya [...] from now"

• nextstep 14y ago
  Maybe he meant "MYa" to mean megayears? I'm guessing this because he also used "GYa", which could be gigayears.
• nbclark 14y ago
  Megayears ago. It is a million years.. . http://en.wiktionary.org/wiki/megayear http://en.wiktionary.org/wiki/megayear