Editing 1909 in science (section)

==Paleontology==
* August 30 – Discovery of the [[Burgess Shale]] [[Cambrian]] [[fossil]] site in the [[Canadian Rockies]] by [[paleontologist]] [[Charles Doolittle Walcott|Charles Walcott]] of the [[Smithsonian Institution]].
* Excavation of the [[dinosaur]] [[bone bed]]s at what will become [[Dinosaur National Monument]] in the [[Uinta Mountains]] of the United States by paleontologist [[Earl Douglass]] working for the [[Carnegie Museum of Natural History]].<ref>{{cite book|first=G. E.|last=Douglass|title=Speak to the Earth and It Will Teach You: The Life and Times of Earl Douglass, 1862–1931|year=2009|location=Charleston, South Carolina|publisher=BookSurge}}</ref>