@article {308551,
	title = {Geology. Defining the epoch we live in.},
	journal = {Science},
	volume = {348},
	year = {2015},
	note = {http://www.sciencemag.org/content/348/6230/38},
	month = {2015 Apr 3},
	pages = {38-9},
	issn = {1095-9203},
	doi = {10.1126/science.aaa7297},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/25838365},
	author = {Ruddiman, William F and Ellis, Erle C and Kaplan, Jed O and Fuller, Dorian Q}
}
