Eric Walker added What Happened to South America’s Missing Mega-Mammals? - The New York Times to a number of topics

Eric Walker added Here’s what happened in the impact crater the day it did in the dinos | Ars Technica to Chicxulub meteor and Cenozoic

Eric Walker added The first day of the Cenozoic | PNAS to Chicxulub meteor and Cenozoic

Eric Walker added Paleocene - Wikipedia and New-found oldest primate ancestor watched the dinosaurs die to Paleocene, and added Paleocene to Cenozoic

Eric Walker added Cretaceous–Paleogene boundary and Eocene to Paleogene, and added Paleogene to Cenozoic

Eric Walker added Paleozoic era, Cenozoic and Mesozoic and Phanerozoic - Wikipedia and Cenozoic - Wikipedia to Phanerozoic, and added Phanerozoic to Geologic time scale (GTS)

Eric Walker added Paleogene, Paleocene and Quaternary and a number of links to Cenozoic, and added Cenozoic to Phanerozoic

Eric Walker added Quaternary glaciation, Quaternary extinction event and Pleistocene and The Anthropocene epoch: have we entered a new phase of planetary history? | Environment | The Guardian to Quaternary, and added Quaternary to Cenozoic