I thought this bit about the "walking seal" discovery was fun:

(from ScienceNow)

"It took a balky, all-terrain vehicle with a broken gas gauge to help reveal the missing piece. In 2007, vertebrate paleontologist Natalia Rybczynski of the Canadian Museum of Nature in Ottawa and her colleagues were returning to their camp from a long day of fieldwork in the Canadian Arctic when they ran out of fuel. While Rybczynski left to get more gas, her graduate student, who was supposed to make sure that the vehicle was refueled, scuffed the ground in irritation and uncovered part of a shin bone. By the time Rybczynski returned, her colleagues' hands were filled with little black bones, and they were doing what Rybczynski refers to as "the fossil dance." Within a few days, the team had recovered most of the skeleton."