title: Mass extinctions. No 'darkness at noon' to do in the dinosaurs?
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D000818:Animals; D025061:Dinosaurs; D004391:Dust; D017753:Ecosystem; D005390:Fires; D018543:Minor Planets; D010788:Photosynthesis; D012906:Smoke
chemical_list: D004391:Dust; D012906:Smoke