↑Thompson, M.D., A.M. Grunow, and J. Ramezum, 2007, Late Neoproterozoic paleogeography of the Southeastern New England Avalon Zone: Insights from U-Pb geochronology and paleomagnetism. Geological Society of America Bulletin. 119(5/6):681-696.
↑Rehmer, J., 1981, Squantum tilloid Member of the Roxbury Conglomerate of Boston, Massachusetts. in M.J. Hambrey and W.B. Harland, eds, pp. 756-759, Earth’s Pre-Pleistocene Glacial Record. Cambridge University Press, Cambridge, United Kingdom.