Eric Walker added New-found oldest primate ancestor watched the dinosaurs die to a number of topics

Eric Walker added The Anthropocene epoch: have we entered a new phase of planetary history? | Environment | The Guardian to a number of topics

Eric Walker added Cretaceous - Wikipedia to Cretaceous

Eric Walker added Cretaceous–Paleogene boundary and Upper Cretaceous and a number of links to Cretaceous, and added Cretaceous to Geologic time scale (GTS) and Mesozoic

Eric Walker added Beast of five teeth: Scientists unearth skunk that walked among dinosaurs to Upper Cretaceous, and added Upper Cretaceous to Cretaceous

Eric Walker added Cretaceous and Triassic and Mesozoic - Wikipedia to Mesozoic, and added Mesozoic to Phanerozoic

Eric Walker added a number of topics and a number of links to Geologic time scale (GTS), and added Geologic time scale (GTS) to Geology and History, prehistory and geologic time

Eric Walker added a number of links to Cretaceous–Paleogene boundary, and added Cretaceous–Paleogene boundary to Cretaceous and Paleogene