FIGURE 4. David A in The vision of David Grimaldi

FIGURE 4. David A. Grimaldi in the field. A, David with a large piece of Alaskan amber uncovered on the Koalak River during his excavations near Arctic Ocean coast in July 2001 (photograph by Keith Luzzi). B, Exploring the Solite Quarry area in 2004; left to right: Michael S. Engel, David (with telescope), and Roy Larimer (photographer unknown). C, David wielding a jackhammer to loosen layers of shale at the Solite Quarry, Virginia in 2004 (photograph by Michael S. Engel). D, Excavating Cambay amber at the Tadkeshwar lignite mine in January 2009; left to right: Paul C. Nascimbene (back to camera at left), Rajendra S. Rana (head in profile), David (seated), Hukam Singh (seated at right to Dave), unknown mine official (squatting), Michael S. Engel (back to camera at right) (photographer unknown).