Hi Victor,
Thanks for your opinion. I agree, the exposed portion of the fossil is heavily weathered (wind, water, etc) – and so I would like to remove matrix (which is extremely hard conglomerate) to see if the bone extends further into the matrix which I assume would be less weathered and more recognizable. Patrick Hsieh from SCPS recommends I use a Mighty Jack – will try to borrow one. Keep watching for further updates!
Bill Ungar