Wondrous Words

1.Ediacaran
"...the country being littered with rock dating back to the Ediacaran."

1.	of, denoting, or formed in the last 50 million years of the Neoproterozoic era, during which a new texturally and chemically distinctive carbonate layer appeared, indicating climatic change

(Dictionary.com) 

2.Pleistocene

"O Guzman! Improbable Pleistocene city on the hill. Or: just more imploding Castilian stone."

Pleis·to·cene

[plahy-stuh-seen] Show IPA Geology .

adjective

1.

noting or pertaining to the epoch forming the earlier half of the Quaternary Period, beginning about two million years ago and ending 10,000 years ago, characterized by widespread glacial ice and the advent of modern humans. See table under geologic time.(Dictionary.com)