David J. Birnbaum University of Pittsburgh obdurodon Elisa Beshero Bondar University of Pittsburgh, Greensburg newt Elisa Beshero Bondar University of Pittsburgh, Greensburg newt Elisa Beshero Bondar University of Pittsburgh, Greensburg newt Elisa Beshero Bondar University of Pittsburgh, Greensburg newt Elisa Beshero Bondar University of Pittsburgh, Greensburg newt University of Victoria, Victoria, BC