Marystown Group
The Marystown Group is a Neoproterozoic stratigraphic group of predominantly volcanic sediments – subaerially deposited ash flow tuffs from rhyolites and alkali basalts, with a central sandstone unit, cropping out in Newfoundland.
It is likely to be temporally equivalent to the Love Cove Group, Connaigre Bay Group, Long Harbour Group and Rock Harbour Group.