Edward G.
Purdy

Rice University






Delia
Oppo

Woods Hole Oceanographic Institution


Norman Dennis
Newell

Columbia (Evolution Tree)


John
Imbrie

Brown (Geotree)


Edward G.
Purdy

Rice University




William B
Curry

The Bermuda Institute of Ocean Sciences (Oceanography Tree)

Thomas M.
Marchitto

CU Boulder
(Options)

Thomas MarchittoX