@article{Littrell2018, author = "John Littrell and Shirng-Wern Tsaih and Amelie Baud and Pasi Rastas and Leah Solberg-Woods and Michael J. Flister", title = "{Supplemental Material for Littrell et al., 2018}", year = "2018", month = "5", url = "https://gsajournals.figshare.com/articles/dataset/Supplement_for_Littrell_et_al_2018/6260888", doi = "10.25387/g3.6260888.v2" }