But here is a memorial for geological periods (MGU biofaces told):
Every Great Student Should Smoke Papyrus. You, Yura, little boy, grow up a little. What??and "

Cambrian, Ordovik, Silur, Devon, Carbon, Perm, Trias, Jura, Mel, Paleogen, Neogen, Quartz.

This is not you "sitting phasen". So is!