The following season in Gallery 14, I uncovered more of the Triceratops. By the time I removed the radius the bank was 12 feet high and I could no longer remove sufficient overburden by hand.
To go further into the bank I rented a small excavator to remove the overburden. I extended the dig another 10 feet and uncovered a second brow horn and a section of Squamosal.
Dinosaur Video 34
Dinosaur Video 53
To make sure I had all the bones that were possible, I engaged my colleagues to remove another 20 feet of overburden down to the bone layer. No additional bones were found. I could leave the site with confidence