Cretaceous–Paleogene boundary Cretaceous–Paleogene boundary The Cretaceous–Paleogene (K–Pg) boundary, formerly known as the Cretaceous–Tertiary (K-T) boundary, is a geological signature, usually a thin band of rock. "K", the first letter of the German word "Kreide" (chalk), is the traditional abbreviation for the Cretaceous Period and "Pg" is the abbreviation for the Paleogene Period. The K–Pg boundary marks the end of the Cretaceous Period, the last period of the Mesozoic Era, and marks the beginning of the Paleogene Period, the first period of the Cenozoic Era. Its age is usually estimated at around 66 Ma (million years ago), with radiometric dating yielding a more
Million Years Ago (song) Million Years Ago (song) "Million Years Ago" is a song recorded by English singer and songwriter Adele for her third studio album "25" (2015). The song was written by Adele Adkins and Greg Kurstin, with production of the song provided by the latter. Lyrically, the track is about how fame has personally affected her and everyone around her. On Adele at the BBC in 2015, she stated that the song was, ""kind of a story about … I drove past Brockwell Park, which is a park in South London I used to live by. It’s where I spent a lot