A graphical method for analysing fossil distortion caused by tectonic deformation

@inproceedings{Wellman1962AGM,
  title={A graphical method for analysing fossil distortion caused by tectonic deformation},
  author={H. W. Wellman},
  year={1962}
}
"A simple graphical method is presented for determining the tectonic strain ellipse of a bedding plane from the distorted shapes of randomly oriented brachiopod shells."