^Pu، Judy P.؛ Bowring، Samuel A.؛ Ramezani، Jahandar؛ Myrow، Paul؛ Raub، Timothy D.؛ Landing، Ed؛ Mills، Andrea؛ Hodgin، Eben؛ MacDonald، Francis A. (2016). "Dodging snowballs: Geochronology of the Gaskiers glaciation and the first appearance of the Ediacaran biota". Geology. ج. 44 ع. 11: 955. DOI:10.1130/G38284.1.