@misc{indiciae042914beb8f8, title = {Carbon isotopes from fossil packrat pellets and elevational movements of Utah agave plants reveal the Younger Dryas cold period in Grand Canyon, Arizona}, author = {K.L. Cole and S.T. Arundel}, year = {2005}, doi = {10.1130/g21769.1}, url = {https://pubs.usgs.gov/publication/70028033}, note = {Source identifier: 70028033} }