It put protective plaster jackets around the exposed bones and reburied them.
2.
Rigby and volunteer paleontologists, with the permission of government agencies, had prospected the area and found the huge dinosaur, which they began excavating and preserving in plaster jackets.
3.
A mould is made from the clay pattern, either as a piece mould from plaster, or using flexible gel or similar rubber-like materials stabilized by a plaster jacket of several pieces.
4.
Sue's bones, most of them still encased in the protective plaster jackets in which the Black Hills Institute had moved them from Williams'land, were locked under seal in a furnace room at the South Dakota School of Mines and Technology.
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