[1] The McCoy Brook Formation rests on the North Mountain Basalt, one of the volcanic flows associated with the Triassic–Jurassic boundary in the Newark Supergroup.
[2] This thin unit (9 m) of lacustrine sediments is preserved in six small synclinal outcrops around Scots Bay on the west side of the Blomidon Peninsula.
[3][4] The Scots Bay Member accumulated in an aerobic lake on the floor of the subtropical Fundy Rift Valley, associated with Silica-rich Hydrothermal Springs derived from the CAMP vulcanism, where the biota is composed of algal Stromatolites, Oncolites, Charophyta, Ostracoda, Gastropoda, Conchostraca, fish bones, calcispheres and logs.
Palycymalia[6][7] Indeterminate Wasson Bluff Middle McCoy Brook Formation Isolated Remains A sphenodontian cf.
Sigmala[6][7] Indeterminate Wasson Bluff Middle McCoy Brook Formation Isolated Remains A sphenodontian P. micmac[11] Wasson Bluff Lower McCoy Brook Formation Partial lower jaw, several other skull bones[11] Found in fluvio-lacustrine sandstone and mudstone, and basalt agglomerate[2] Sphenosuchid[2][6] Indeterminate Lower McCoy Brook Formation Found in fluvio-lacustrine sandstone and mudstone, and basalt agglomerate Ornithischia[2][7][6] Indeterminate Wasson Bluff Scots Bay Member Suggested to be similar to Scutellosaurus and to Leshotosaurus.